it was great to listen to my iPod on the factory radio.
Next:Turn this into a working system.
I consider that all the research needed is done. Next will be:
* install an stereo input jack on the car radio. I think i will use a 1/8 headphone type. Probably a with a de-coupling capacitor for each (L & R) signal.
* a circuit with some logic to feed the iPod or on-star signal to the radio. I want to be able to use the on-star eventually. After talking on the phone with my good friend SQ we have a tentative design!