It would be cool to control the ipod from the steering wheel, but I think i will just buy this unit:
it's less than $20 and charges the ipod and uses the dock on the bottom for better sound. But I WILL be needing a ground loop isolator correct, since it will be charging at the same time?
That's similar to the belkin unit except it adds a video output. And correct you will need a ground loop isolator.