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2014 Cayman S
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I think if you work backwards from the PET you can look up the part numbers then the option codes to see what the PCM came from and which options it has.
Jim
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Thanks! that is awesome. Do you know the difference between part numbers 991.642.963.00 and 991.642.963.11 ? Both are listed for boxster and Cayman. Both have XM and do not have the built in phone
The last two digits are, I believe, similar to a 'version' level. The '11' unit will be newer than the '00' version. Date of manufacture is shown on the small label on the side of the unit. The spec (eg: phone, XM, etc) is shown on the large label on the underside.

James
 

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The last two digits are, I believe, similar to a 'version' level. The '11' unit will be newer than the '00' version. Date of manufacture is shown on the small label on the side of the unit. The spec (eg: phone, XM, etc) is shown on the large label on the underside.

James
A question for the gurus: a salvage yard I contacted has a unit but they do not know the VIN of the vehicle it came from. Is this a deal killer? Can’t this information be obtained directly from the unit once it’s hooked up to the PIWIS? Do I need the old VIN to get the codes?
 

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A question for the gurus: a salvage yard I contacted has a unit but they do not know the VIN of the vehicle it came from. Is this a deal killer? Can’t this information be obtained directly from the unit once it’s hooked up to the PIWIS? Do I need the old VIN to get the codes?
I am not sure about if you need the existing VIN to code the PCM but I wouldn't be surprised if you do as i assume the activation code ties the PCM to the VIN to avoid being able to use a stolen unit. As you are searching for a used PCM I would personally be looking for a unit that would have the HW Version 4 which was from a later 2013 or later. This allows you to upgrade the the latest V4.76 software and allows adding some of the lesser expensive back up cameras and also has jukebox and later functions like Email and Text support that the 2012 and early 2013 with HW Version 3 do not have.
Jim
 
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I am not sure about if you need the existing VIN to code the PCM but I wouldn't be surprised if you do as i assume the activation code ties the PCM to the VIN to avoid being able to use a stolen unit. As you are searching for a used PCM I would personally be looking for a unit that would have the HW Version 4 which was from a later 2013 or later. This allows you to upgrade the the latest V4.76 software and allows adding some of the lesser expensive back up cameras and also has jukebox and later functions like Email and Text support that the 2012 and early 2013 with HW Version 3 do not have.
Jim
Is there a way to tell what version you have without the unit in hand? Is there something on the label?
 

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Ok then, I have digested more of this voluminous thread. I am going to need that second mic and a GPS antenna for my 2013 Boxster S 6mt. I am having trouble with the part numbers. The one John Alpin listed for the mic doesn't seem to spec for the 2013 boxster. I have to say that I am really not good at finding these parts on the internet. None of the usual parts sites seem to list them.
Question: Do I need the Porsche GPS antenna or will an aftermarket job work just as well. This goes behind the rearview mirror, correct? Thaks!
 

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Ok then, I have digested more of this voluminous thread. I am going to need that second mic and a GPS antenna for my 2013 Boxster S 6mt. I am having trouble with the part numbers. The one John Alpin listed for the mic doesn't seem to spec for the 2013 boxster. I have to say that I am really not good at finding these parts on the internet. None of the usual parts sites seem to list them.
Question: Do I need the Porsche GPS antenna or will an aftermarket job work just as well. This goes behind the rearview mirror, correct? Thaks!
You can download the Porsche Parts Catalog (known as PET) from the Suncoast site. It’s about 700 pages and the PCM and antenna wiring diagrams are at the end of the pages. It gives you all of the part numbers. The screenshots I listed above are from the PET. The factory GPS antenna mounts by the rear view mirror but mitch48 mounted his at the base of the windshield with good results.
Jim
 

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A question for the gurus: a salvage yard I contacted has a unit but they do not know the VIN of the vehicle it came from. Is this a deal killer? Can’t this information be obtained directly from the unit once it’s hooked up to the PIWIS? Do I need the old VIN to get the codes?
No, you do not need the VIN of the donor vehicle. The codes you will need to buy and have loaded (coded) to your vehicle will be issues against your car's VIN. You will need to provide the VIN of your car when you purchase the codes.

James
 

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Ok then, I have digested more of this voluminous thread. I am going to need that second mic and a GPS antenna for my 2013 Boxster S 6mt. I am having trouble with the part numbers. The one John Alpin listed for the mic doesn't seem to spec for the 2013 boxster. I have to say that I am really not good at finding these parts on the internet. None of the usual parts sites seem to list them.
Question: Do I need the Porsche GPS antenna or will an aftermarket job work just as well. This goes behind the rearview mirror, correct? Thaks!
Your PCM (model 9633) looks good to go! As you say, the later model with Jukebox capability etc.

As I mentioned in one of my earlier replies you will need the extra mic and wiring but that's easy to do (the part numbers quoted earlier in the thread are good for your car), and the GPS antenna and leads. It's worth getting the USB socket (goes in glovebox) and lead, too (and you will likely need a code for this functionality when you get to that point).

Seeing as you have digital radio/sat/Xm (and assuming you get good coverage from that - being UK based I wouldn't know) then I wouldn't bother with the FM diversity bits and pieces, as it really doesn't work very well, other than to buy a cheap aftermarket adaptor to connect the twin FM aerial downleads into the single FM Fakra input on the back of the PCM. In my experience, that will give you 80% of the FM diversity module performance which, in itself, probably gives only 50% of the full-fat performance of the original set up.

Let us know when you're all done.

James
 

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Ok then, I have digested more of this voluminous thread. I am going to need that second mic and a GPS antenna for my 2013 Boxster S 6mt. I am having trouble with the part numbers. The one John Alpin listed for the mic doesn't seem to spec for the 2013 boxster. I have to say that I am really not good at finding these parts on the internet. None of the usual parts sites seem to list them.
Question: Do I need the Porsche GPS antenna or will an aftermarket job work just as well. This goes behind the rearview mirror, correct? Thaks!
You can do what I did and get a generic GPS antenna and mount at the base of the windshield, works as well imo.
 

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Now just waiting for my car to be delivered. The PCM I got off ebay will be here Saturday. I'm thinking that a generic GPS will work just as well as the Porsche one, which along with connecting cable costs $160. Thanks mitch48.
 

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Now just waiting for my car to be delivered. The PCM I got off ebay will be here Saturday. I'm thinking that a generic GPS will work just as well as the Porsche one, which along with connecting cable costs $160. Thanks mitch48.
Get a T-design magnetic phone holder and use phone for gps...free updates.

 

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That Dmitry is reliable but a man of few words. I have satellite and bluetooth already in the new car with the CDR31. I purchased his codes for NAV and MAP. Do I need new codes for satellite and bluetooth even though I already have these? The forums aren't entirely clear on this point.
 

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So I am ready to do the PCM retrofit and I have all the parts I think I need: second mic, aftermarket GPS antenna, USB cable and plastic fitting for it that goes in glove box. My question is, is there a connecting wire for the second mic that I need? If so, does anyone know the part number for this so I can order it? Thanks!!
 

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Here is the issue. When I ordered the mic from my dealer’s parts guy, I got this(see pic). There is no connecting wire. He said the “02” part replaced the “01” part.

Brown Font Circuit component Wood Material property



I was able to only find the entire wiring harness for both mics online, part 991 044 900 37. I ordered that.

Food Ingredient Packing materials Plastic wrap Plastic


i hope it works
 

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I’m about to undertake this adventure as well. Found a head unit on eBay $899. Seller only has the cars Vin number. No codes.
So I’ll have to buy the codes from Porsche. Anyone know the cost?

And just to confirm. I’ll need:
GPS antenna
2x microphones
Mic harness 991 044 900 37
USB Cable
Glove box cap for usb.

I have a 2015 Cayman S. With Bose. CDR31. No navigation.


Wheel Car Vehicle Tire Land vehicle
 

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I don't think Porsche will sell you the codes. Do what I did and buy them from a hacker , in Russia in my case. Read the entire thread here on P9 about it.
 

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I’m about to undertake this adventure as well. Found a head unit on eBay $899. Seller only has the cars Vin number. No codes.
So I’ll have to buy the codes from Porsche. Anyone know the cost?

And just to confirm. I’ll need:
GPS antenna
2x microphones
Mic harness 991 044 900 37
USB Cable
Glove box cap for usb.

I have a 2015 Cayman S. With Bose. CDR31. No navigation.


View attachment 276026
As Mitch has said, I think you'll fine that Porsche will not sell you the codes directly but the source that several of us have used, based in Russia, is very reliable and fast. You will need your Porsche dealer (or a good independent that has a PIWIS kit that can access the Porsche central vehicle database) to load and activate the codes for your car, though.

PS: Nice looking motor!

James
 

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Oui c'est bon. Je l'ai fait sur une 991.Chaque code coûte 100 $. 4 sont nécessaires.
1 pour le téléphone, 1 pour le GPS, 1 pour le logo d'affichage de démarrage et 1 pour la MAP. Vous avez besoin d'un deuxième microphone, plus le câble. Vous avez également besoin d'une antenne GPS et enfin d'un connecteur spécifique (1 connecteur au lieu de 2) pour connecter l'antenne radio. Les 4 codes doivent être saisis à l'aide du logiciel Porsche.
Enfin il vous faudra un amplificateur pour la radio et le téléphone, car le PCM3.1 n'a pas de préamplificateur comme le CDR31 et sans cet amplificateur, le son sera très faible.
Voici.
 
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