I did this in the thread that Bitt linked to earlier and had no success though. I will definitely be interested in a solution though.

Now that I have sourced an empeg tuner, I have to get my Alpine CD changer software/hardware interface to work properly, which requires talking to the serial port. Also have that GPS... hmmm I'm out of serial ports .
_________________________
Christian
#40104192 120Gb (no longer in my E36 M3, won't fit the E46 M3)