Trying to Install a PCM 1 Head Unit - Need help

[Chuck W.]

Thanks for all the replies.

I have the wiring diagram for both the CDR and PCM and worked all day Friday jumping pins. I did get the face buttons to illuminate, but that was it.

I contacted two pro audio shops that specialize in Porsches. They said without the right harness, its not going to happen. One post I found said that it was done and was so difficult they never would have attempted it if they knew what they were getting into.

It appears that Porsche would make the cars harness to fit the options on the car. The PCM doesn't just operate the radio and navigation, but also taps into the A/C, reads the outside temperature and more.

It was a good effort and IMHO, the unit would have looked great in the car, but alas, it is not to be.

I am going to go back to the cars original configuration of A/C controller on top, then a CDR220 (or CR220) radio, then the storage bin and the DSP. Unfortunately, when I put the double din in I sold the CDR radio and gave the bin away. I'll start a new WTB post.