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Retrofit of PCM in 987S

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I currently have the CDR 24 radio in my Boxster S. I do not have the telephone preparation option (618).

I am considering to buy a used PCM unit (PN 997.642.101.05). This unit does have the GSM option build in but does not have the additional DVD player for in the front of the car. I am not planning on using the navigation since I prefer to use TomTom.

What needs to be done beside the physical replacement of the old unit with the new PCM?

Does the dealer need to do additional programing?

Do I need additional parts to get the phone to work?

Thanks in advance for all possible input.

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I beleive there is a TSB available on this forum for retro fitting the PCM into the Boxster / Cayman. If you pay the subscription fee to the forum , you will be able to access this info. As to fitting the unit in your car, I would think that the system has to be re configured to accept the PCM so that it can communicate with the instrument cluster and convenience parts of the system. The telephone capability requires an additional module that needs to be wired into the pcm. Whilst the merits of tom tom are notable , I think you will be pleasantly surprised with the functions of the Porsche unit , particularly the TMC or traffic message system. If it were me, i would try to get the DVD unit to suit this model of PCM. Again on the TSB part of the forum you can find the details of compatability of PCM with DVD unit and Bose amplifier. Be aware that matching of hardware is essential. The PCM is also designed to work with or without the sport chrono pack plus and the Bose sound upgrade. If you have a second hand unit , it may have previously been configured for accessories you do not have (6 Cd changer, Sport Chrono, Telephone Module, Bose sound upgrade) again the porsche dealer should be able to sort this out. Bearing in mind that Porsche charge about 110 pounds an hour for labour , I'd expect little change from 500 pounds if they were to fit and configure it for you.

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