Radio input

[pyro]

my question is one how does the head unit tell disk changer next song and 2 how does the ipod know when to change songs? what i was thinking is one of those headphone controllers for the ipod (little square thing that has 4 buttons) and use that w/ possibly a relay or some circuit that when the BMW's head unit says next disk itl close the circuit on that little controller.

[Jay 535i]

my question is one how does the head unit tell disk changer next song and 2 how does the ipod know when to change songs? what i was thinking is one of those headphone controllers for the ipod (little square thing that has 4 buttons) and use that w/ possibly a relay or some circuit that when the BMW's head unit says next disk itl close the circuit on that little controller.

I dunno, and that may not be possible. With what I was suggesting, you'd still have to use the interface on the iPod to select your tracks.

[pyro]

Would anyone happen to have the pinout of the cd changer cable or a wireing diagram of that? I bought a 12v adapter for the ipod and its SIMPLE so if i can figure out the pinouts to the cd changer i wouln't mind makeing a simple schmatic and help people build them.