Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)
rahlstrom

2003 - 2004 Boxster AVIC D3 Install with MOST Bus

Recommended Posts

2003 - 2004 Boxster AVIC D3 Install with MOST Bus


Thanks again to all of those contributors that helped me while I went through this upgrade. This topic appears to be a common one and one that doesn't appear to have a complete solution for contending with the MOST bus. Hopefully my DIY will help owners with the MOST bus successfully upgrade their factory stereo system as I have with mine. Also note that the wiring and process described should work with any system (Kenwood, Alpine, etc.), not just the AVIC D3 as the signal requirements and facto

 

Edited by rahlstrom

Share this post


Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

Nice job. I'm even more convinced that this is over my DIY head! :thankyou:

Give the wiring diagram to your installer. Much simpler ;)

Share this post


Link to post
Share on other sites

Ralstrom,

I mounted my mic, GPS antenna, and CD-BTB200 in exactly the same locations as you have done. My microphone however, sounds like it is in a tunnel. Did you do anything speacial like foam around the mic or some type of packing behind? How does yours sound?

Edited by kbrandsma

Share this post


Link to post
Share on other sites
Ralstrom,

I mounted my mic, GPS antenna, and CD-BTB200 in exactly the same locations as you have done. My microphone however, sounds like it is in a tunnel. Did you do anything speacial like foam around the mic or some type of packing behind? How does yours sound?

Great minds think alike. I've asked callers and with the top up, volume levels are fine, although there is a bit of a hollow sound. I've never been on the receiving end of a call. To answer the question, no, I haven't tried foam insulation behind the mic, although it's a great idea and definitely worth a try. If you have any success be sure to post the results.

Thanks.

Share this post


Link to post
Share on other sites

I tried calling my voicemail at home and at work and they both sound very tinny and like I'm calling from a tunnel. I'll try a few different things and may end up mounting the mic where the console and the dash meet directly below the present location. If you find out anything let me know as well.

Share this post


Link to post
Share on other sites

Rahlstrom,

what did you do with the MOST harness ?

At the back of my CDR23, there are the yellow and black harness (discribed in treullionniare DIY), and a third little harness with two orange wire (most bus).

The MOST seems to link my BOSE amp and CD charger, so I suppose I can't just get rid of it...

Any idea ?

Thanks again.

Share this post


Link to post
Share on other sites
Rahlstrom,

what did you do with the MOST harness ?

At the back of my CDR23, there are the yellow and black harness (discribed in described by treullionniare DIY), and a third little harness with two orange wire (most bus).

The MOST seems to link my BOSE amp and CD charger, so I suppose I can't just get rid of it...

Any idea ?

Thanks again.

I taped over the end of the MOST but connector and left it in place. If you are moving to a new head unit, unfortunately you will need to replace all the other components using the MOST bus. The reason is that the MOST but carries the pre-amp signals digitally to the amplifier. I didn't have the CD changer but did have to remove my factory AMP. You are dealing with a Porsche proprietary system that is virtually impossible to make work with a non Porsche head unit. My DIY is most useful for the harness wiring as this is different than the pinnouts described by treullionniare for a non MOST bus harness.

Share this post


Link to post
Share on other sites

Thanks Rahlstrom,

nice work and excellent write-up! I was looking for such an answer for my 03'Boxster about a year ago and could not find nothing. Now that its been proven, i will take up the challange!

Share this post


Link to post
Share on other sites
Thanks Rahlstrom,

nice work and excellent write-up! I was looking for such an answer for my 03'Boxster about a year ago and could not find nothing. Now that its been proven, i will take up the challange!

Sure thing Ody. Good luck with the job. I'm still very happy with my install and the sound.

Share this post


Link to post
Share on other sites

HI, Rahlstrom

Do you mind telling me how you attach the ACC wire? The stereo system is still on when I take out my key. It seems like the receiver is always on. I check the black harness, it always has 12V.

Thank you.

Share this post


Link to post
Share on other sites
HI, Rahlstrom

Do you mind telling me how you attach the ACC wire? The stereo system is still on when I take out my key. It seems like the receiver is always on. I check the black harness, it always has 12V.

Thank you.

Only unswitched (continuous) power is available on the factory radio harness. The switched power is available on the "phone prep" connector as noted in the DIY:

"Note that only un-switched power is available in the factory radio harness. I used the phone prep cable in the console to get switched power for both the radio and as you’ll see, power for the bluetooth module. Note that the wiring diagram on the previous page lists the fuse locations that will now correspond to your radio and bluetooth module if you install one. The picture to the left shows what the phone prep cable looks like and where to find it...".

The AVIC has two power connections, one for switched and one for unswitched. If you use unswitched power for both the radio power connections it will stay on and drain your battery.

Share this post


Link to post
Share on other sites

hello,

i m alex from france sorry for language, i m learning again.... :lol:

I've a question , i ve to buy the kit for 2din, and a ALPINE W505, my BOxster is 2003 with option M490 ( ampli Harman and cdc4)

i think there is a fiber optik who give me problems.

Its possible to use the ampli with my alpine, please? MANY PEOPLE SAY ME NO :huh:

and can i use the option 617 ( phone preparation) with?

how i can do please, i don't understand every

thank you

best regard

alex

Edited by alex30

Share this post


Link to post
Share on other sites
hello,

i m alex from france sorry for language, i m learning again.... :lol:

I've a question , i ve to buy the kit for 2din, and a ALPINE W505, my BOxster is 2003 with option M490 ( ampli Harman and cdc4)

i think there is a fiber optik who give me problems.

Its possible to use the ampli with my alpine, please? MANY PEOPLE SAY ME NO :huh:

and can i use the option 617 ( phone preparation) with?

how i can do please, i don't understand every

thank you

best regard

alex

The old amp will not work with the Alpine stereo. The Alpine PDX-5 is what I used to upgrade the factory amp and it sounds great.

The phone prep cable only carries power and a signal wire that goes back to the stereo. It's only useful for power, unless you actually buy the Porsche phone module to plug into the harness. I would suggest the Alpine bluetooth adapter instead.

Share this post


Link to post
Share on other sites
I tried calling my voicemail at home and at work and they both sound very tinny and like I'm calling from a tunnel. I'll try a few different things and may end up mounting the mic where the console and the dash meet directly below the present location. If you find out anything let me know as well.

I finally got around to pulling out the dash again and I installed foam insulation behind the mic and in the gauge cluster cavity behind the mic. What a difference! It still sounds like a speaker phone to callers on the other end but the clarity is much better. It made hands free calling usable where before, no one could understand me.

Share this post


Link to post
Share on other sites

rahlstrom

Tell me more about the foam installation in the gauge cluster cavity. What type of foam did you use?

Share this post


Link to post
Share on other sites

The old amp will not work with the Alpine stereo. The Alpine PDX-5 is what I used to upgrade the factory amp and it sounds great.

The phone prep cable only carries power and a signal wire that goes back to the stereo. It's only useful for power, unless you actually buy the Porsche phone module to plug into the harness. I would suggest the Alpine bluetooth adapter instead.

thanks,

with the alpine pdx 5 i can use the original fiber optic of porsche?? please

in your pic of microphone, you put the new. in my cover microphone there is the old or factory micro with my option phone prep cable, how can i put off this old mic please i dont understand what you have to do in your nice DIY

THANKS

Alex

Share this post


Link to post
Share on other sites
rahlstrom

Tell me more about the foam installation in the gauge cluster cavity. What type of foam did you use?

Nothing special. Believe it or not, I just pulled apart one of those pool "splash balls" that has a foam core. I would imagine that anything pliable enough that effectively fills the cavity would work fine.

Share this post


Link to post
Share on other sites
Thanks again to all of those contributors that helped me while I went through this upgrade. This topic appears to be a common one and one that doesn't appear to have a complete solution for contending with the MOST bus. Hopefully my DIY will help owners with the MOST bus successfully upgrade their factory stereo system as I have with mine. Also note that the wiring and process described should work with any system (Kenwood, Alpine, etc.), not just the AVIC D3 as the signal requirements and factory harness wiring is detailed here.

Also note that this upgrade also covers the iPod interface, Sirius satellite radio and Bluetooth module install.

Good luck!

Hi,

I just installed this unit in my 98 porsche boxster. The problem is that it seems that the unit does not receive constant power so my settings will go back to factory settings every time I stop the car. I have noticed that my old gps that I used through the sigarette lighter stays on even if I turn of the car.

Is this normal? Maybe someone has switched the cables so the sigarette lighter gets the cable that the avic-d3 is supposed to get

Best Regards

Kay form Norway

Share this post


Link to post
Share on other sites
Hi,

I just installed this unit in my 98 porsche boxster. The problem is that it seems that the unit does not receive constant power so my settings will go back to factory settings every time I stop the car. I have noticed that my old gps that I used through the sigarette lighter stays on even if I turn of the car.

Is this normal? Maybe someone has switched the cables so the sigarette lighter gets the cable that the avic-d3 is supposed to get

Best Regards

Kay form Norway

Kay.

In the Boxster the cigarette lighter has constant power. You probably have a red and an orange wire going from the ISO-connector into the AVIC. If you look at the wiring diagram one should say constant power and the other would be switched power. Try swapping them around.

Atle

(also in Norway)

Share this post


Link to post
Share on other sites

I tried calling my voicemail at home and at work and they both sound very tinny and like I'm calling from a tunnel. I'll try a few different things and may end up mounting the mic where the console and the dash meet directly below the present location. If you find out anything let me know as well.

I finally got around to pulling out the dash again and I installed foam insulation behind the mic and in the gauge cluster cavity behind the mic. What a difference! It still sounds like a speaker phone to callers on the other end but the clarity is much better. It made hands free calling usable where before, no one could understand me.

I got my installer put mine (the phone microphone) up near the rear view mirror so it was protected from the wind, there is a gap for the wire to pass out from hidden under the plastic. I drive alot with the roof down and don't have problems with calls on the road, its a parrot system that I had added when I removed the Motorola "thing" that was factory fitted.

Would be great to get rid of the black bit that is attached to the LHS where the parrot is currently placed when I put in a new 2 din touch screen.

I have also ordered other bits such as buttons to fill in the 3 black one on either side of my new screen.

Has anyone worked out if any of the new model touch screens with hard drives can be wired up to 1 or 2 of those blank rocker type buttons either side of the radio like the soft top up/down one ?

post-32525-0-45482300-1294044722_thumb.j

post-32525-0-23170300-1294047172_thumb.j

Edited by 00boxster

Share this post


Link to post
Share on other sites

Thanks for the diy. Question about glare. How is the on screen visibility with the top down and on a sunny day?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.