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Joined: 03 Jun 2017
Posts: 25
Location: Norfolk, UK

PostPosted: Sat Jun 10, 2017 3:52 pm    Post subject: PCM replacement/alternatives. Reply with quote

The 2003 Cayenne Turbo I bought recently came with a PCM with a dead screen. Everything seems to work other than that so hoped it might be fixable, but it seems the cost of repair in addition to the missing UK SatNav disc would leave me ***** out similar money to an up to date replacement.

So, my question is what have people fitted? I've had a good search around but if anything I'm left with more questions than answers.

What's important to me is:

SatNav - a good, postcode based system.
Radio - preferably DAB but not vital.
Hands free phone.
Integration - OEM look with integration with the steering wheel controls and fibre optic Bose amp.

Any other features would be a bonus, but those are the musts.

For plug and play my options seem to be:

One of the Chinese Android based machines on Ebay (but my feeling is they are likely to be garbage)
The Dynavin N6-PC which others seem to have bought but I'm struggling to find longer term reviews of how they perform and the one review on Amazon is shocking.

Any other option would seem to be a standard double din unit by any other make made to fit with a Cayenne specific surround/fitting kit. It's the steering wheel and Bose amp integration that I'm not sure about in these cases.

Has anyone fitted an aftermarket stereo to a Cayenne that they'd recommend?
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Joined: 03 Jun 2017
Posts: 25
Location: Norfolk, UK

PostPosted: Sun Jun 11, 2017 2:38 pm    Post subject: Reply with quote

I guess the other question I need to ask is if I decide to stay OEM and buy one of the second hand PCMs on Ebay, is is just a straight swap? Or are they coded to the car in any way?

The one I've now removed is a PCM 2.1, BE6654 which has manufacture date on the unit of 15/05 (???) and came with a set of 8 Navigation CDs from 08/2007 with CD3 (UK) missing.

Would I need to replace with another Becker 6654? Or would other PCMs fit? Is sourcing the missing CD going to be a problem?
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Joined: 03 Jun 2017
Posts: 25
Location: Norfolk, UK

PostPosted: Mon Jun 12, 2017 11:07 am    Post subject: Reply with quote

I'll answer some of my own questions.... Laughing

The Chinese Android based units are indeed garbage.

The twice as expensive Dynavin version (also Chinese) also garbage. Having now met someone who bought one and regrets it as it constantly freezes and has to pulled out of the dash to have the plug pulled, I've eliminated that.

I bought a second-hand PCM 2.1 of the same model as mine (BE 6654) and it works. It didn't have the Navi module in the bottom, so I swapped the one over from my old one. I have complete functionality of everything now except...

The navigation is asking for a disc which I don't have. It would seem that the PCM software version I am running is the original non-updated one (04035) making it 2.1 as opposed to later 2.1A and 2.1B versions.
While it seems possible that it can be updated to use later maps, this process seems fraught with danger, particularly to possibly bricking my Bose amp (software 00012115).

Does anyone know which discs I need to buy to use it in it's current state? (PCM 04035, navigation 00001291)

Also, is anyone familiar with the update process? Can it be done safely without spending hundreds at a main dealer?
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Paul Ricard

Joined: 21 Mar 2015
Posts: 3024
Location: Sussex

PostPosted: Mon Jun 12, 2017 7:47 pm    Post subject: Reply with quote

I cant help much here im afraid .. but you seem so lonley in this thread that i thought id come and join you Very Happy

Only a dealership ( i think ) has the update discs .. there are an awfull lot and it was something i used to hate .. takes ages , never seems to work and as a mechanic i only got 0.5 hrs for it .

If you cant find any discs you are happy with then i would say main dealer .. but they wont like you very much lol .

7pm - 9pm
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Joined: 03 Jun 2017
Posts: 25
Location: Norfolk, UK

PostPosted: Tue Jun 13, 2017 8:54 am    Post subject: Reply with quote

It was getting a little cold in here, cheers! I THINK the process might involve updating first to 2005, then to 2007 so I'd be very unpopular, plus out to the tune of a few hundred at a Porsche dealer. Looks like the discs are available second hand (as they're old!), but actually doing it could brick various components if you don't know what you're doing.

I've found an Ebay seller in Belfast who's trying to find out what disc might work in it's current state, from the reading I've done updating might even mean replacing the Bose amp to a newer one so probably not worth the effort/expense.

Although if anyone has done so at a reasonable cost, I'd still be interested to hear how it's done!
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