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Pelican Technical Article:
Changing Your Stereo Head Unit / Installing Ipod Integration

Time: 3 hours
Tab: $300
Radio removal tools
Applicable Models:
986 Boxster (1997-04)
987 Boxster (2005-08)
Parts Required:
Radio, antenna adapter, wire harness adapter
Hot Tip:
Get the correct adapters for your car, so you don't have to cut any wires
Performance Gain:
Great sounding tunes!
Complementary Modification:
Upgrade your speakers

  This article is one in a series that have been released in conjunction with Wayne's new book, 101 Performance Projects for Your Porsche Boxster.  The book contains 312 pages of full color projects detailing everything from performance mods to changing your brake pads.   With more than 950+ full-color glossy photos accompanying extensive step-by-step procedures, this book is required reading in any Boxster owner's collection. The book is currently available and in stock now. See The Official Book Website for more details.

Check out some other sample projects from the book: 

Need to buy parts for this project? Click here to order!
     One of the first projects many new Boxster owners perform on their car is to remove and replace their stereo head unit.  I know that if I buy a car that has a weak stereo, it's one of the first things to go.  The factory Porsche head units (manufactured by Becker) are best described as barely adequate - the technology is at least 10 years old in most cases, and the controls on the units are beyond terrible. This article specifically contains only wiring information for the 1997-04 Boxsters, but is also applicable to the 2005 and later cars.

     The good news is that the replacement process is relatively easy, providing you have the right information, and the right parts.  First, disconnect the battery (see Pelican Technical Article: Battery Disconnect Switch / Battery Buddy Installation).  The radio harness has constant voltage supplied to it, and you don't want to accidentally blow any fuses or damage any electrical components.  Using the set of factory radio removal tools (available from Becker, part number BNA-1184-989), pull out the radio as detailed in Photo 4 of Pelican Technical Article: Installing the Rear Speaker Kit. On the back of the unit, there may be a few wire connectors, and a smaller antenna connector.  Remove the antenna connector by simply tugging on it.

     In order to install your new radio, you will need some cable adapters for the Boxster's wiring harness.  The adapters plug into the factory connectors and have leads on them that you can then connect to the leads or connector on your new radio.  You can cut the OEM connector off and tap directly into the factory harness, but I strongly caution against this - it's best to use the adapter cables (cost about $20).  I put some spade connectors on the ends of the harness adapter, and the connector that plugged into my new radio. The kits I used for my 2000 Boxster were Metra brand, PN: 70-1787 (VW/Bose AMP Integration), and the Euro antenna adapter kit from Scosche, PN: VWA-KB (Volkswagen Antenna Adapter Kit). This antenna adapter kit contains two adapters, so that you can use an aftermarket stereo, and/or install an in-line FM modulator iPod interface (see below). These kit part numbers should be good for all of the Boxsters through 2004: for 2005 and up models, check the radio you have in your car before you order the adapters.

     In general, the most difficult part of installing a new radio is figuring out how to wire it. I've done all of the legwork for you here by putting together this handy wiring chart (1997-04). The green connector and blue connector on the back of the radio are for the operation of the CD changer, if your car has one (mounted in the front trunk, see website for pinouts on those connectors).



Connector and Pin




Grey / Pink

Speed dependent Vol Control

Black Connector A – Pin 1



Black Connector A – Pin 2

Yellow / Black

Mute for telecom interface

Black Connector A – Pin 3

Red / Black (thick)

Constant Power 12V (Fuse D8)

Black Connector A – Pin 4


Power antenna control

Black Connector A – Pin 5

Grey / Blue

Illumination (headlamps on)

Black Connector A – Pin 6


12 Volt Switched Power (Fuse E1)

Black Connector A – Pin 7

Brown (thick)

Chassis Ground

Black Connector A – Pin 8





Right Rear Speaker Positive

Brown Connector B – Pin 1


Right Rear Speaker Negative

Brown Connector B – Pin 2


Right Front Speaker Positive

Brown Connector B – Pin 3

Red /Brown

Right Front Speaker Negative

Brown Connector B – Pin 4


Left Front Speaker Positive

Brown Connector B – Pin 5

Yellow /Brown

Left Front Speaker Negative

Brown Connector B – Pin 6


Left Rear Speaker Positive

Brown Connector B – Pin 7


Left Rear Speaker Negative

Brown Connector B – Pin 8







Yellow / Red

Left Rear Line Output Positive

Yellow Connector C – Pin 1

Red / Blue

Right Rear Line Output Positive

Yellow Connector C – Pin 2

Brown / Blue

Common Audio Ground

Yellow Connector C – Pin 3

Green / Red

Left Front Line Output Positive

Yellow Connector C – Pin 4

Violet / Red

Right Front Line Output Positive

Yellow Connector C – Pin 5

Black / Red

12 Volt Switched Power

Yellow Connector C – Pin 6





CD Changer - BUS On

Green Connector C – Pin 7


CD Changer - Battery

Green Connector C – Pin 8


CD Changer - Ground

Green Connector C – Pin 9


CD Changer - Data

Green Connector C – Pin 10


CD Changer - Clock

Green Connector C – Pin 11


CD Changer - Reset

Green Connector C – Pin 12




Blue / Green

Telephone Audio

Blue Connector C – Pin 13

Blue / Yellow

Telephone Audio Common

Blue Connector C – Pin 14



Blue Connector C – Pin 15



Blue Connector C – Pin 16



Blue Connector C – Pin 17


CD Changer - Common Audio Ground

Blue Connector C – Pin 18


CD Changer - Left

Blue Connector C – Pin 19


CD Changer - Right

Blue Connector C – Pin 20

 If your car does not have an external amplifier, then the speakers for the Boxster will plug directly into the brown connector B on the back of the radio. If your Boxster has an external amplifier, then there will be a smaller yellow connector that outputs the signals from the head unit to the amplifier. If you have a factory amplifier installed, then you can simply adapt the signal from your new stereo into the leads on the yellow plug, as I have done with this stereo installation. If not, then you simply hook up the speaker leads from the new stereo to the adapter that plugs into the brown connector.

     Wire your harness adapter together according to the wiring chart and the instructions included with your new radio. Plug the harness adapter into the factory connector, and then plug the harness into the back of the head unit and connect all of the spade connectors. On this particular head unit, I found that the antenna jack on the back of the unit was not compatible with the one in the factory harness, so I needed the antenna adapter mentioned previously.  Plug the adapter into the back of the unit, and then you should be able to plug the antenna cable into the unit.  With the new head unit wired up, reconnect the battery, and turn it on to test it.  If all of the speakers, radio, and lights work, then install the radio bracket into the center dashboard.  This is the bracket that comes with your new unit, and typically has tabs that you bend into place once you position the bracket.  When the bracket is secure, simply slide the radio into its spot on the center dashboard.  Be careful though - most of these units are designed to be easy to install, but very difficult to remove, so make sure that everything works before inserting it into the dashboard.

     The radio I chose to use for this Project was a Pioneer head unit with a built-in CD player and iPod support. These types of head units allow you to plug your iPod into the stereo, and then choose and select songs to play from the stereo itself. In addition, the stereo charges the iPod while it's playing. This arrangement is very cool, but I don't recommend it if you happen to have an iPhone. One of the coolest features of the iPhone is its ability to stream music from alternative sources like Pandora or SimplifyMedia. For iPhone users, I recommend the installation of an FM modulator interface that allows you to play music from the iPhone onto the stereo by emulating a radio station. Using this setup, you can listen to any music on the iPhone, and/or any music that may be provided by a music service that streams music over the cellphone network. For example, using the DICE Electronics FM adapter installation detailed in Photo 3, I am able to listen to music streamed off of my home computer, through the cell phone network, and to the car, as I am driving. I'm sure the technology will change and get better as time passes, but this is the best that's available as of 2010.

     Another way of playing through the stock radio with virtually no cost at all is by using the AUX input. The factory radio CDR-220 has the ability to take input from an external source. You can purchase a blue connector plug from Becker (PN: 1319.116-276) that will fit into the back of the radio and interface with your external source, or you can tap into the blue plug that is provided as part of the CD changer interface. Tap into and wire up your input source (iPod, etc) using the three wires that exit out of the blue connector (Pins 18, 19, 20). Then turn the radio on, and then hold down the TP button until the message BECKER 1 is displayed. Then turn the tuning knob until the message AUX OFF is displayed. Press the down arrow and change the message to AUX ON. Turn the radio off, and now you have auxiliary input enabled.

     The little radio knobs on the stock radios are pretty terrible, and often deteriorate with age. You can purchase new ones from Porsche (PN: 996-645-901-00), or check the for a tip about how to refurbish your old ones.

     The Boxster alarm system has a small contact switch located to the left side of the radio compartment that detects removal of the radio. In order to prevent the alarm from repeatedly going off, you need to connect this wire (brown / blue) to ground.

Shown here are the adapter harnesses I used for this installation.
Figure 1
Shown here are the adapter harnesses I used for this installation. A- This harness emulates plug C on the radio, and breaks the signal up into RCA jacks that you can plug into the back of your new head unit. Be sure to properly connect up the blue wire as well, which sends the signal to power up the amplifier. B- This plug is the main plug which supplies power to the radio. C- This is the antenna adapter for the back of the new radio. It converts the long tube-style plug into the smaller, European-style connector. D- This reverse antenna adapter is required along with the other one if you are using the iPod FM modulator interface. When connecting the harness adapters, I recommend using simple spade connectors to link the two together. In general, I do not recommend cutting wires in your car: it becomes very difficult to fix and/or restore the electrical system back to stock if anything goes wrong.
Large Image | Extra-Large Image
Shown here is the new radio ready for installation into the car.
Figure 2
Shown here is the new radio ready for installation into the car. The yellow arrow shows the antenna adapter installed. The bracket is installed into the center dashboard (blue arrow), ready for the radio. The factory harness is connected to the adapter, and the connector for the radio is plugged into the back of the new head unit. It's normal to have one or two wires that are not used. In this photo, I plugged in all of the connections, and then turned on the ignition to test the proper operation of the radio. I recommend testing prior to the final installation, as these radios are designed to be difficult to remove. New buttons for your stock radio are easy to install: simply pull them off and push on the new ones (inset, lower right). The green arrow shows the alarm radio detection switch, which must be grounded when installing a new unit.
Large Image | Extra-Large Image
This photo array shows the installation of the DICE universal iPod adapter.
Figure 3
This photo array shows the installation of the DICE universal iPod adapter. A- Here is the FM modulator kit as it comes out of the box. You also need the Scosche VWAKB antenna adapter set (shown in the upper right) to work with the factory radio and its European connectors. B- Mount the DICE unit with double-sided sticky tape. C- Mount it on the underside of the center console and give yourself enough room to access the connectors (yellow arrow). D- Use three tap-in connectors to connect the unit to the 12V supply, the ignition 12V switched supply, and the ground. Plug in the antenna adapters and the inline antenna cable. E- Drill a hole in the back of the storage compartment and route the cable through. F- Test the system and then reinstall the stereo. Although there are many different iPod adapter units available on the market, this particular one has the ability to display the iPod song and artist on the radio through the FM-RDS protocol. I tested the unit and compared the sound quality to the CD input: it was indistinguishable. The only small drawback appears to be that the volume level of the iPod interface is a bit lower than simply playing CDs.
Large Image | Extra-Large Image
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Bonus Photos
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Comments and Suggestions:
Paul1962 Comments: The alarm micro switch has been removed and there is no sign of the brown/blue wire that was connected to it and needs to be earthed, I thing this is the probable cause of my alarm problems,

could you tell me where I am likely to find the other end of this wire, where it would have been cut back to, if it has been cut back or what it connects to and where?

Thanks Paul
January 10, 2015
  Followup from the Pelican Staff: You didn't mention what vehicle you have. Being you are in the UK, I will not have access to the wiring. I would grab a wiring diagram for your vehicle. - Nick at Pelican Parts  
Ian Comments: Hi. The radio on my 2001 Boxster S works fine when the ignition is on but engine not running. When the engine is fired up the radio immediately stopes working. When the engine is running the screen remains illuminated but is not responsive to controls. The sat nav continues to work.
Any ideas? Thanks v much in advance.
January 4, 2015
  Followup from the Pelican Staff: COuld be an issue with the alternator. I would check charging system voltage and A/C output. If something is skewed, the radio may shut down to conserve. - Nick at Pelican Parts  
b19upj Comments: Thanks for the reply Wayne,
To clarify, I am looking to install a new stereo in my 01 Boxster, but the Yellow AMP connector has a common ground 5 wires for 4 speakers and my new stereo has what i have learnt is called a floating ground 8 wires for 4 speakers.
How do i connect them together/install the new stereo?
November 20, 2014
  Followup from the Pelican Staff: Your new radio should have instructions, that would be your best bet is getting advice from the manufacturer, of the radio, if needed.

I would think, you could connect each ground for the specific channel to that specific speaker. Just run a ground to each speaker. - Nick at Pelican Parts
b19 Comments: Hi Wayne,
I currently have a CR-22 but want to change my stereo. I have an AMP so my rear connectors are A and C1 Yellow.
The new stereo has a wire diagram more like connectors A and B.
So shall i splice my common ground 4 ways and put them in the 4 negative speaker wires, then match the other positive wires as follows:
Socket C Left Rear line output+ Pin1 = Socket B Left Rear speaker left+ Pin 7
Socket C Pin 2 RR+ = Socket B Pin 1 RR+
Socket C Pin 4 LF+ = Socket B Pin 5 LF+
Socket C Pin 5 RF+= Socket Pin 3 RF+
Common Audio Ground Socket C Pin 3 = split 4 ways and put on Socket B Pin 2, 4, 6 & 8.
Switched 12v power Socket C Pin 6 = Switched 12v power Socket A Pin 7.
November 19, 2014
  Followup from the Pelican Staff: In that case, I would join all the speaker grounds to the common speaker ground. - Nick at Pelican Parts  
mikesz Comments: question I have is in figure 1 adapter A, I assume the 4 rca plugs are for the 2 front and 2 door speakers? If so what do I wire up if I don't have 4 rca audio outputs?
September 18, 2014
  Followup from the Pelican Staff: I would think so. You may have to buy an adapter to go from RCA to butt connector. - Nick at Pelican Parts  
Turbo Comments: I have a 03 996 with a CDR23 and it flashes on and off with no sound just lights up and never comes on. I have removed it left it out overnight and when I install it I get the same. Any idea what is going on?
September 17, 2014
  Followup from the Pelican Staff: The radio is likely faulty. - Nick at Pelican Parts  
Berkboss Comments: Hi, I replaced the Head in my 2000 Boxster and it's working; however, Everytime I turn the car off it factory resets and after a few days of not running the battery is completely drained. Replaced the battery too as a precaution and the new one is draining as well. Any ideas on what I've done wrong? Thanks!
September 3, 2014
  Followup from the Pelican Staff: You may have the radio powered up all the time, a wire may be connected incorrectly. Recheck the constant and terminal 15 connection to the radio. - Nick at Pelican Parts  
bobmwsc Comments: I just picked up a headunit to install in my mom's 1999 Boxster. I figured she had lived with a TAPE DECK long enough! As you can imagine she has the base audio system with just the two dash speakers - no nav - no amp - no cd changer. When I did a search for a compatible wiring harness it stated that the Metra 70-1784 harness was the appropriate one. It looks like letter "B" in figure one of the photo and doesn't include A power to the AMP?.

Also, could you recommend a source for dash speaker brackets? Since she only has 2 I wouldn't mind upgrading those for her but I don't want to destroy the originals.

August 14, 2014
  Followup from the Pelican Staff: Pelican can get you those parts. Give our parts specialists a call at 1-888-280-7799 and they can help figure out which part or repair kit you need.
- Nick at Pelican Parts
Rick Comments: just purchased a Kenwood DDX771. Currently my speakers are running thru the yellow connector C, and this has a common negative wire. The new harness has individual negative speaker connections. Do these all tie together? This is on a 2001 Boxster conv. with front and door speakers.
July 27, 2014
  Followup from the Pelican Staff: You will have use the same common negative then each channel of the speakers. - Nick at Pelican Parts  
AndyS320 Comments: Hi

Just upgraded to Indianapolis 7922 unit with sat nav. No reading on the W sensor for sat nav, assume this is wheel revolutions - is the speed dependent volume control wire A1 suitable to use as GAL input speed sensor if not where can I pick up a signal for this.
July 25, 2014
  Followup from the Pelican Staff: I don't have any experience with this issue.

I opened a post in our forums. A Pelican community member may be able to answer your question. - Nick at Pelican Parts
denim2375 Comments: Hi guys! I have a 2010 Boxster with a CDR-30 head unit and was wondering if the wires list in this article applies. Wanted to check before I remove the head unit.

Any feedback much appreciated.
June 30, 2014
  Followup from the Pelican Staff: Doesn't look like it. This tech article applies to:

986 Boxster (1997-04)
987 Boxster (2005-08)
I would grab a repair manual.

Give our parts specialists a call at 1-888-280-7799.- Nick at Pelican Parts
John B Comments: Re myogui. The orange wire remains on the radio.
June 18, 2014
  Followup from the Pelican Staff: Thanks for the input on this one. We appreciate the help.
- Nick at Pelican Parts
Michawl Comments: Follow up to my last post...I have a 2005 Boxster...OEM sound systen.....The dealer said the 2005 does not require codes...The radio does not show code after replacing the amp.....
June 16, 2014
  Followup from the Pelican Staff: See my earlier reply. - Nick at Pelican Parts  
Michael Comments: I had a new battery replaced in my Boxster...The IDIOTS at Battery Plus reversed the cables and blew my Amp....After searching for mos. to find a used amp. I found one...I replaced the amp and the radio is still not working....The new amp does not blow fuses like the old one...Any suggestions ????
June 16, 2014
  Followup from the Pelican Staff: The radio may also be blown. I would check power and ground to it. If they are good, the radio is likely faulty. - Nick at Pelican Parts  
myogui Comments: If you could please help me figure this out. I own a 2003 Boxster S US model with a CDR23 unit with amp and door speakers.

I don't have any orange wire on pin 7 of the black connector. On which wire do I tap the ignition/12 Volt Switched Power?

See pic. Thanks
June 12, 2014
  Followup from the Pelican Staff: I don't thunk your models has ignition voltage (term 15). It has constant voltage (term 30) and a shared wake up signal that turns the radio on. If replacing the radio with aftermarket, you may need a harness adapter. - Nick at Pelican Parts  
b19upj Comments: Hi Doug,
I was thinking of undertaking this little project for my 2001 Boxster and would really appreciate your wire adapter.
Please email me at for me to reply with my postal address as i dont want to publish it online
Many thanks
June 2, 2014
  Followup from the Pelican Staff: This forum is a great resource for connection folks and solving problem. Thanks for joining the conversation. - Nick at Pelican Parts  
Dougler986 Comments: Hi.

I have a '98 986 and I'm replacing the non-OEM stereo with an original Becker CDR-22, purely because I wasn't the car to be as original as possible.

I've got the old stereo out and I've removed the metal. Age and adapter cables and reconnected the unit to the original wiring with the assistance of Source Sound in Sheffield, UK but now I'm having real difficulty in getting the Becker stereo into the slot. It seems that it's jamming against something but not sure what......has anybody else had a similar experience and if so, any tips on how to get it in without damaging the stereo or the dashboard.

Any assistance would be very much appreciated.



Ps. I have the wiring apdapter which I don't need if anybody in the UK wants it they can have it for free. Just let me know your contact details and an address to ship to.
May 30, 2014
  Followup from the Pelican Staff: This can be the wiring at bunching up as you insert the radio. Try pushing the wires down as you install the radio. - Nick at Pelican Parts  
hra BoxterS Comments: I’m experienced the following problem with my 2000 Boxster S radio: When the car is running, the radio works fine, receiving the stations, but, when I stop or move at very slow speed, the radio sound in an intermittent way. Did you experience this situation? What you recommend to look for? Thanks for your help.
April 28, 2014
  Followup from the Pelican Staff: I would check your charging system. If system voltage is dropping you will lose accessory function. - Nick at Pelican Parts  
DomParkes Comments: Hi I am looking to install the Becker PN: 1319.116-276

as these days you can get sat nav, music and everything from your mobile.

I have a Porsche CDR-32 radio however Not sure if this is typical in the UK I am just wondering which part to connect the cable into: C1 , C2 or C3?
April 21, 2014
  Followup from the Pelican Staff: The aftermarket radio should come with installation instructions. I would suggest purchasing an adapter kit, as it will guide you where to connect the new to the old. - Nick at Pelican Parts  
Neonrazor Comments: I have installed an after market head unit Xtron chinese one with a sat nav built in and all was working fine up until last week when the central locking seems to have stopped working from the remote, I have reset the keys, relinked them, the red light on them lights up and on the sensor on the car but it just doesnt seem to work at all. Can open the car by using the key directly but I am wondering what it could be thats stopping the remote locking working. I also noticed that now when I switch off the engine the stereo does not switch itself off, which it used to do. I have removed it and reinstalled it which seem to sort it out for about an hour or two but now am back to square one.
April 19, 2014
  Followup from the Pelican Staff: You could have power from the aftermarket radio backfeeding the vehicle. Causing it to stay awake. I would remove the radio and see if that remedies the issue. - Nick at Pelican Parts  
johnboy1966 Comments: I want to install front rear struts on my 2001 porsh boxster
April 18, 2014
  Followup from the Pelican Staff: see this tech article: - Nick at Pelican Parts  
E Comments: Need Help! I bought a 2003 Boxster and want to add at least some rear speakers. I ordered the speaker mounts from Pelican. The problem I am having is the wiring to head unit, I think. The car belonged to a gentleman in his late 60's. The car was well taken care of and it looks like the radio and amp were stock and not altered. The car has a CDR23 with external ampfront trunk There are the sub speakers in each door and two in dash. It has the MOST system. When I bought the car the right dash speaker was not working. once I pulled head unit I noticed my wiring did not match colors or placement from book. This is what I have :Yellow Connector C 1 Yellow 2 Black 3 Empty 4Red/White 5Empty 6 Green. My Black connector A: 1 pink/grey 2 Black/blue 3 black/yellow 4 Red/Black 5 White 6 Empty 7 Empty 8 Brown. My questions are first do you sell a tool to remove connectors from yellow block? I have tried pins and paper clips to no avail. Do you thing changing green wire from pin 6 to 5 will fix my right speaker? What is best way to hook-up back speakers if I keep head and amp and still have door speakers work. What ohms speaker will I need to use with my amp. Thanks
April 8, 2014
  Followup from the Pelican Staff: Speakers: ohm test what is in the vehicle, use similar rating.

Wiring: Your vehicle may be different than the vehicle in the article, I would grab a repair manual.

Special tool: We should have something to help with the electrical connectors. Give our parts specialists a call at 1-888-280-7799

I would swap wires around. I would connect the new speakers on the same channels the old were. If adding speakers and there is no room on the amp, you may have to add an amp with the appropriate amount of channels. - Nick at Pelican Parts
Blondie Comments: I have a 2002 Boxster with a CDR 220 the zero button does not work. The security code has a zero in it so I am unable to get past the security code requirement, any suggestions? How can I get new code or can I buy used CDR 220 and just replace the face? Thanks
April 1, 2014
  Followup from the Pelican Staff: You will have to get the code from a Porsche dealer. - Nick at Pelican Parts  
Tan Comments: I have a 2003 Boxster with the OEM CDR23. The radio is fine but the CD player just makes a clicking sound when a CD is inserted and then displays 'no disk'. Is this terminal? I've seen a few posts regarding this fault but no solutions.
March 24, 2014
  Followup from the Pelican Staff: it does sounds like you need a new unit. - Nick at Pelican Parts  
Eric B Comments: 2000 Boxster w/ CDR 220 and factory amp. I installed the rear speakers using the 101 Projects, plugging the speakers directly into the back of the radio Plug B slots 1,2,7,8.

I thought it odd to have some speakers run through the amp and others fed directly, but all worked well. Great tutorial & I’m glad I’ve bought the book.

Now, I’ve upgraded to an Alpine head unit stock amp and am wondering again if the rear speakers should be connected to though the amp or directly to the back of the stereo. I would think I’d want to run the rear speakers off the amp as well, but am unsure as to where to make the connections. Any advice would be appreciated.
March 22, 2014
  Followup from the Pelican Staff: I would stick with the same wiring scenario. Unless of course the new radio cannot power the speakers. Then you may have to add them to the amp, or add a new amp. - Nick at Pelican Parts  
JohnB Comments: Update* The problem is that there is no Orange wire in the black connector. I had hooked up to the speed sensing wire because it is the only 12+ switched on and off by the ignition. I cant figure out why the orange wire isnt in the loom. Im in the same situation now..I need a ignition controlled 12+ to tap into in this area. Please help ;
March 16, 2014
  Followup from the Pelican Staff: The radio wakes up from a signal sent from the CD changer. The red/blk sends term 30 to the radio (constant). Looking at the wiring there is no term 15 (ignition) to the radio. You mayhave to run your own. - Nick at Pelican Parts  
John B Comments: So..all done or so I think. As soon as the car hits one mph the orange wires voltage drops shutting off the radio. When I stop, it goes back to 12 volts. 03 base boxster with the standard no amp, no door speaker unit. Now i need to find a wire with 12 volts + that is controlled by the ignition..Any thoughts?
March 15, 2014
  Followup from the Pelican Staff: I'll answer this under your other question. - Nick at Pelican Parts  
Kendoo Comments: I just got a 99' boxster with the stock radio, 6 disc changer and amp. The guy at the sound shop said that the stock amp will not work with a aftermarket radio , Is this true?
February 17, 2014
  Followup from the Pelican Staff: Should work fine, cannot think of why he said that. This tech article describes the installation process for your vehicle: - Nick at Pelican Parts
February 9, 2014
  Followup from the Pelican Staff: I do not think it work. I would look for a radio for your model, find something with the same part number. - Nick at Pelican Parts  
Jesse Comments: I have a CDR-210 in my 99 986. It comes on and goes of unless the lights are on. Then it works fine? Any ideas what might be wrong? Was debating on replacing it but would rather keep it if I could get it working!
February 9, 2014
  Followup from the Pelican Staff: Sounds like an internal fault in the unit. I would wait until it fails completely then replace it. - Nick at Pelican Parts  
RickKlem Comments: Hi,

I have the CDR220 with stock amp and CD changer in my 2000 Boxster. When I replaced the battery because it had been sitting for a while the radio now has no signs of power. I know that I will need to enter the code which I have, but it wont power up. Fuse 8 and 9 row D are good. What could be my issue?

Thanks Rick
February 1, 2014
  Followup from the Pelican Staff: The radio may have failed during the battery replacement. If the cables were reversed or if there was a voltage spike. I would remove the radio and check that it is in fact getting good power supply and ground. If so, the radio may be faulty.- Nick at Pelican Parts  
kmo Comments: Replaced radio in a '98 986. Used the metra harness and also had a guy use crimp connectors for all the wires. One problem I am having is that the radio must not have constant power as the radio presets and settings erase every time car turned off. Other than plug in harness, I remember a wire plugged into a metal extension on the original housing sleeve. The alarm beeped so I taped of the end of this wire and alarm was fine. Can you confirm what I need to look out to keep the radio memory and also if that tapping off that other wire - what I should do or not do with it. Thx!
February 1, 2014
  Followup from the Pelican Staff: The factory radio gets constant power (terminal 30) on pin 4 at the radio from Fuse B2. I would check that circuit to start. - Nick at Pelican Parts  
Spunky Comments: Does anyone know if the Kenwood KDC-BT555U In-Dash CD/MP3/USB Car Stereo Receiver with Bluetooth is compatible for self installation with a 2001 Boxster with 3.2L engine?
December 2, 2013
  Followup from the Pelican Staff: Yes, you should be able to install that into your vehicle. i would buy wiring harness adapters along with the radio. - Nick at Pelican Parts  
Rex Comments: What's the A and B's harness part number??
November 1, 2013
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799. They can help you find the right part.
- Nick at Pelican Parts
Comanchepilot Comments: I have an 2002 base Boxster with the crummy factory radio - no amps - no Bose - no door speakers.

going to single Din pop up GPS - that is going to use Bluetooth AD2p for iphone - its just easier than the cable.

What will I need for this? I have radio removers- will everything just plug into the radio on the power and speaker side?? and then I just need to install the mic and the GPS antenna / / / correct?

I don't have an alarm that I know of - only the key immobilizer.
October 15, 2013
  Followup from the Pelican Staff: You'll need the tools to remove the radio, which it sounds like you have. You will likely need some electrical tools in case you have to cut or butt connect wires. The unit you purchased should have an adapter harness for your vehicle and installation instructions. This would be the safest bet, follow them when installing it. If you can, get a wiring diagram for your vehicle to reference during the install.- Nick at Pelican Parts  
Boxster58 Comments: For information:
On my 2008 987 Boxster Sound Plus, the Black Connector A – Pin 2 is used as a switched 12v output to the amp which feeds the 2 door speakers.
July 29, 2013
  Followup from the Pelican Staff: Thanks for the information - Kerry at Pelican Parts  
Ndank Comments: I've had luck changing out my 02 and my 06 radios. Now I own a 2009 987 it's stereo has no amp. I did find an after market VW plug that fits the quad lock plug but I need the wiring diagram to the porsche cdr-30 pin out connector as the pin placement is different. Do you have this diagram? Thanks in advance!
July 28, 2013
  Followup from the Pelican Staff: Your best bet to buy a repair manual. It would have the wiring diagram you need. - Nick at Pelican Parts  
SJFARB Comments: I see the comment "be sure to connect the blue wire" , I do have a factory amp in the hood, and based on the pictures it looks like the "blue wire" comes off the new red harness and ties into the new multipin on the new radio, what wire does the blue wire tie into ??? Thanks!
June 27, 2013
  Followup from the Pelican Staff: Use the wire cross reference chart located in this article:"> Nick at Pelican Parts  
ShowcasePorsche Comments: drewbourke
Where did you find out how to make a harness to bypass factory amp?
June 24, 2013
  Followup from the Pelican Staff: Sounds like he made the harness using the supplied wiring info in the tech article. - Nick at Pelican Parts  
drewbourke Comments: My 2001 Boxster had the power amp, and with only 40 watts per channel, it did not do the job well with the top down. Thanks to Pelican Parts, I was able to find the amp, make a new wiring harness, bypass the amp, take the speaker leads near the amp, and re-route them into the car using grommets through the firewall, and connect the speakers directly to a new Pioneer DVD head unit. Using the 4x50 watts power from the Pioneer unit is WAY better than the power from the amp. The sound is AMAZING. Also, by having the door speakers set as the rear channel, I can control the amount of bass/EQ that goes to them, which really cleaned-up the overall sound. I highly recommend using the head-unit's power or buying a new power amp, and using this article to get it installed correctly. Great job Pelican!
April 21, 2013
  Followup from the Pelican Staff: Thanks for the feedback, glad we could help. - Nick at Pelican Parts  
SandmanUK Comments: This is the best guide I found and was a great help when I installed my pioneer appradio 2 to my 99' 986. I have dash and door speakers and the amp under the hood. I didnt even need an adapter for the power connection to the new head unit. The only thing I needed to do that isnt exactly clear in the guide is hook up the blue wire from the yellow block to the "system remote control" wire on the new head unit. Everything works perfectly.
April 15, 2013
  Followup from the Pelican Staff: Glad to help! - Nick at Pelican Parts  
Bartok Comments: HI Wayne: I recently purchased the 101 Projects Book and have a 2001 Boxster S I'm installing a new stereo head unit project 88 and although the unit lights up, I am not getting any sound. You mention in your directives to "Be sure to properly connect up the blue wire as well, which sends the signal to power up the amplifier". Where does this wire go?
Thank you

Thank you
December 14, 2012
  Followup from the Pelican Staff: Use the wire cross reference chart located in this article: - Nick at Pelican Parts  
Bob Comments: I have a 2007 Boxster with Bose system. What parts would I need to have for XM radio, Ipos, Bluetooth, etc?
December 11, 2012
  Followup from the Pelican Staff: Do you want these to be factory integrated? I am not sure bluetooth was available for your vehicle. There are a few aftermarket solutions. Give our parts specialists a call at 1-888-280-7799. They can help you find the right part. - Nick at Pelican Parts  
AFields Comments: I have read this and many other threads on installing aftermarket head units in a 2004 boxtser s with cdr23 head unit. owefer, I cannot find a confirmation of whether the procedure above will work for this unit. my car does not appear to have the Bose amp system, it has only the dash board speakers no door speakers and does not have the bose sound system option code. Can someone address whether the procedure above will work to replace the head unit with a kenwood aftermarket?
December 9, 2012
  Followup from the Pelican Staff: It should work, at the least it will get you part of the way there. You will have to get a wiring harness adapter for your specific vehicle. If you can get your hands on a repair manual with the wiring, you can be sure what your vehicle has and how to connect the radio. - Nick at Pelican Parts  
batmobile Comments: I have a 2003 boxster. just replace factory radio with aftermarket new 8" Alpine navigation/dvd. but now my alarm dosent work at all, beeps twice, wont lock doors or anything. I read that there is an alarm radio detection switch. I dont know what im looking for any help?
October 7, 2012
  Followup from the Pelican Staff: I have not seen this issue.
I opened a post in our forums. A Pelican community member may be able to answer your question.
- Nick at Pelican Parts
nmp Comments: I have own my 1998 Boxster for about a year now. My problem is if it sets for a week the battery will end up dead. Now I can't get the radio to take the code to restart. All it say is wait. Any ideas???
September 10, 2012
  Followup from the Pelican Staff: You have to leave the key in the ON position until wait goes away. Then you can enter the code. - Nick at Pelican Parts  
Art Comments: I have a Porsch 2008 Boxster,Do you have a intergrated Ipod system hook up? not FM connection.
June 20, 2012
  Followup from the Pelican Staff: I did a quick search and didn't find anything. Give our parts specialists a call at 1-888-280-7799. They might be able to locae it for you. - Nick at Pelican Parts  
agogo Comments: Dear Sir,

Have you any about 987 stereo unit removal photo for reference, because my unit have some problem, I need to remove it for repairing.
Thanks in advance!
May 18, 2012
  Followup from the Pelican Staff: No we don't. But if we get the chance to perform the procedure we will document it. - Nick at Pelican Parts  
Mookie Comments: what are the options for the CDR 24 unit? Will it accept ipod integration?
April 2, 2012
  Followup from the Pelican Staff: FOund this info helpful:

the Dension Gateway 500. Direct-to-the-loop integration, no disruption of stock components, relatively straightforward installation, iPod in glove box or storage box ahead of shifter. - Nick at Pelican Parts
Trapper Comments: I swapped out my stock CDR-210 for a nice JVC head unit. Everything works great except I have extremely poor AM reception. Is there a built-in antenna amplifier that needs to be powered or something? If not, any other ideas to improve AM reception?

I'm sorry, I forgot to mention this poor AM reception problem is on a 1999 Porsche 996.
March 12, 2012
  Followup from the Pelican Staff: Check that all the wires from the factory radio have been installed correctly. There is an antenna amplifier, powered by a white wire from the radio. - Nick at Pelican Parts  
Brent Comments: I'm doing an install an a 2003 Boxster and the yellow connector doesn't exactly match up with the RCA input adaptor. It also has what seems to be two orange optical wires that go to the amp in the front. Anyone have any idea what to do to get sound?
March 9, 2012
  Followup from the Pelican Staff: I would need to know more about what your vehicle has. There area number of radios. With and without Bose, Nav with and without Bose. - Nick at Pelican Parts  
jad050 Comments: Have a used 2002 Boxster with *I beleive* is the Bose system, under hood I found option code 680 - seems to decode to "HI-FI Sound System with Booster".. It seems the radio has been replaced and the CD changer removed story from owner, not one who did it. Doors have speakers, and I have a Bose rear deck set of speakers, looks nice..
My solution to ipod problem was to pickup a Sony DSX-200X on close out. Gives me Ipod conrol on unit and bonus feature instead of Cd player has compartment to put ipod, not a lot of extra room in a boxster.. On paper a simple task. Everything from Crutchfield, to allow me to simpley wire connectors together, same as shown above, plug and play... did it all, turned on radio, all the functions works.. no sound!

On close examination my cars C3 plug pins 13-20 have no wires!!! except for the AMPonpin15. unbolted amp and BoseSomething in trunk. Does anyone have a source for how this is wired together. The bigger item looks like amp, but smaller unitBose label not sure what it is, has a bunch twisted pair wires plugged into in.

Any help/pointers is appreciated...

Correction to below getting late On close examination my cars Yellow C plug pins 1-5 have no wires!!! except for the AMPonpin6. unbolted amp and BoseSomething in trunk. Does anyone have a source for how this is wired together. The bigger item looks like amp, but smaller unitBose label not sure what it is, has a bunch twisted pair wires plugged into in.
March 7, 2012
  Followup from the Pelican Staff: The twisted pair is likely the speaker wires. I would suggest getting a repair manual with the wiring for your vehicle. Your vehicle isn't a US car, our wiring may not match.- Nick at Pelican Parts  
Hmsrinkers Comments: Hi, I'm having dramas trying to install my
Stereo on my 1999 boxster. I have purchased an aftermarket stereo with all the correct harnesses. But getting no sound output, where does the blue wire coming out of the red connector block go!!
February 23, 2012
  Followup from the Pelican Staff: I would need to know what system your vehicle has. With out without amplifier. - Nick at Pelican Parts  
cayvman Comments: I have replaced the hu in a 2004 boxster s and have the power going to the phone power supply in center consulesp. However, when I turn the ignition off but key still in, the system shuts off. looking for the power source that will keep power on until removing key.
February 4, 2012
  Followup from the Pelican Staff: I'm not sure where you can pull that from. I looked at the wiring, nothing jumped out as being delayed accessory off. - Nick at Pelican Parts  
jimbo Comments: I have a '99 Boxster. The car had an original Porshe Radio Traffic Pro. I wasn't getting any bass response. Through trial and error. I replaced the original radio with a Kenwood Eschelon 395 radio $129 The car had a Haes 4X40 amp in the front trunk. Powering the dash and door speakers. The rear speakers were powered by the radio. I kept the wire pretty much the same. I ran the back speakers off the new radio. Disconnected the wires running to the dash speakers and ran new wires directly to the radio, for the front speakers. My new radio has a RCA out for the Subwoofer. I spliced RCA wires from radio to the Haes amp. The amp has a crossover that sends power to Door speakers. The sound is Fantastic! I'm a musician, and now I have door speakers, that really pump. Cheapest and best way to improve the sound in your Boxster. The new radio has a Subwoofer volume control. Amazing Sound.
February 1, 2012
  Followup from the Pelican Staff:
Thanks for the additional Info. We appreciate it.
- Nick at Pelican Parts
Continuum Comments: For the CDR-23 in my 2004 Boxster S I had to use the Metra 40-EU10 and 40-EU20 antenna adapters to install an FM modulator input.
January 29, 2012
  Followup from the Pelican Staff:
Thanks for the additional Info. We appreciate it. - Nick at Pelican Parts
Benja Comments: Hey Wayne,
I cannot tell you how informative these posting have been! This website has by far the most complete "how-to" guides I have found. Ok, Ok.. enough of the gushy stuff ;

I have a 2002 Carrera 996 with the CDR-220 stock head unit with Bose Speakers & Amp etc etc. I am unsure if this helps anyone else in my predicament of the search of an iPod/iPhone AUX input, but I was on Becker's website and they have an iPod or AUX adapter you simply plug into the back of your head unit. Unfortunately it replaces the use of your CD changer in your trunk, but with all your songs on your iPod/iPhone, its worth it to me. The link is below:

I really hope this helps anyone out there on the search to upgrade the "Un-upgradeable Porsche Sound System"
January 24, 2012
  Followup from the Pelican Staff:
Thanks for the additional Info. We appreciate it.
- Nick at Pelican Parts
OscarAH-1W Comments: Tried to use this info along with Crutchfield's instructions to replace the CDR-23 in my 2004 GT3. I figured it would be simple because there are no MOST connections in the GT3. The wiring as you depict it would work exactly with the VW adapter that I got with the new head unit. The problem is that pin 7 on connector A is empty on the GT3, so I have no switched power coming through the black connector. found it out after I plugged everything in and the only thing the new head unit would do is whirr when I pushed eject, and blink when you pull the face off. I put the 23 back in and am just going to pay the experts.. Thanks for the good writeup, though.
January 18, 2012
  Followup from the Pelican Staff:
Thanks for the additional info, I am sure it will help someone in the future. It can be tough at time to get aftermarket stuff to match up with factory. - Nick at Pelican Parts
le bouch Comments: Thanks for the guide - it's great.

Is there a name for the red plug RCA Amp shown in the photos? I am happy with a soldering iron and splicing into the plug from the male stereo RCAs but just wondered what plug / loom you tapped into?
December 15, 2011
  Followup from the Pelican Staff: I'm sorry, I can't really figure out exactly what you're asking here? - Wayne at Pelican Parts  
Joe Comments: I have a stock CD changer with a CDR220 head. I can use the blue plug for a ipod or existing CD changer--but not both. Right?
December 5, 2011
  Followup from the Pelican Staff: I believe that's the case, the AUX input on the stereo replaces the input from the CD changer. - Wayne at Pelican Parts  
Entwistlea Comments: Great write up. I tried to put a pioneer into my 2001 with factory Amp, got an adaptor lead using the headunit pre outs but only get sound out of front right speaker, tried swapping all round, but still only front right works... any suggestions much appreciated !
September 11, 2011
  Followup from the Pelican Staff: I'm guessing that there's a wire or connector pin that is not working - check the continuity of the wires running to the door and see if you have a broken connection. - Wayne at Pelican Parts  
JeffStone Comments: This was an excellent guide. I just installed a JVC HD radio into my 2001 Boxster replacing the CDR-220 OEM radio. I also used the 70-1787 wiring harness. The only wrinkle I faced is that I had to connect the red wire from the 70-1787 to the yellow wire from my radio and the yellow wire from the 70-1787 to the red wire from my radio. I am so happy with modern radio in my Boxster! Thanks for your help.
July 22, 2011
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
Otto Comments: I have an 02 Boxster with I believe the Becker 220 head unit. I had the iSimple universal iPod integration kit installed @ a Best Buy and it works like a charm. It runs $139 and plays from the iPhone and works well with Pandora and the Napster app as well. The only problem was that it didn't work at all for phone calls. I just finished installing a Scosche bt1000 bluetooth integration kit by splicing it into the existing harness as well, and I used this very handy wiring chart to do it. I mounted the phone speaker in the passenger footwell and the mike on the steering column in front of the gauges. I drilled a hole in the top of the pocket below the deck to feed the iPod cable and the bluetooth control unit through. The reason I modified the existing radio is that I couldn't find a way to keep the factory CD changer with an aftermarket deck and the Bose 10 speaker set sounded pretty decent to me anyway. An aftermarket head unit depending on what you get and how it's wired may not sound right especially if you have the bass box behind the seats like mine.

Also- the scosche kit hooks in to the negative mute output in the harness so that no matter what I'm playing on the stereo, be it from my iPhone, radio, or CD, it mutes the music and "PHONE" is displayed on the screen as the call goes through to the bluetooth kit. The bluetooth kit has a line out connection that I could use instead of the small speaker, so I'm trying to find a way to jack that back in to the deck so the phone calls come through the car speakers instead.

I'll see if I can take a couple pictures and post them to this article- I've been pretty happy with my results.
July 3, 2011
  Followup from the Pelican Staff: Thanks for the note, I'm going to copy this to our Boxster forums ( If you still have those pics, feel free to post them there. Thx - Wayne at Pelican Parts  
Jim Arn Comments: I just swapped the head unit in my 986 and was unsure what to do about the internal amp. I ended up just bypassing the amp completely by splicing the inputs from the speakers to the outputs from the amp. This was a good idea for three of the speakers but the right rear speaker doesnt work now, is this because of the whole common ground situation? My head unit had the yellow connector.
May 24, 2011
  Followup from the Pelican Staff: Cool pic, you look way too happy though! If the other speakers are working and the right one isn't, I would check the wires to the speaker and make sure that they are not damaged. The speakers don't use a common ground, just two electrical pairs. I think that if they used a common ground, a lot of interference would get on the signal traveling through the line. - Wayne at Pelican Parts  
naro914 Comments: Hi Wayne,
I too have a CDR23 in my GT3 and want to somehow get an ipod jack for it, and not replace the head unit. I spoke to Becker, and they said there is no way to do it because the 2004 and newer Porsches with CDR23 and newerget signal via fiber optics, and there is no AUX jack.

Have you found any other work around? or am I stuck with the cigarette lighter FM transmitter adapter thing?
April 12, 2011
  Followup from the Pelican Staff: I think you're right, there doesn't appear to be an AUX input on the later style radios. The FM tuner adapter works surprisingly well though. My only complaint about it is that the volume is a bit softer than when playing direct from a CD. - Wayne at Pelican Parts  
Renorush Comments: The article by Wayne Dempsey about replacing the stereo head unit in a Boxster appears to be for a CDR-220 stereo. I have a CDR-23 stereo which has an amplifier in the trunk. I've heard this is a Bose MOST system. Will the same procedures from the article work for my stereo? I just want to replace the head unit with an aftermarket stereo.
March 31, 2011
  Followup from the Pelican Staff: Take a look at our Boxster Forums - there is a bunch of information in there on what needs to be done to work with the MOST system here. Basically, the system is upgradeable, but the BOSE system may be a bit more difficult to work with. - Wayne at Pelican Parts  

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