Hi all, I have a Pioneer car stereo, and want to use my ipod with it. I can get a cable (CDi-200) as in the following picture, which will allow me to plug my ipod into the proprietary cd-stacker input on the back of my head unit... (note, in this picture, the small, square plug fits in the stacker socket on the back of my head unit). Problem is, I want to continue using my stacker. Pioneer sell a unit, the cd-ib100II, which basically allows you to use 2 items on the cd-stacker input. BUT... my head unit can't run the ib100II. So I was thinking of doing the following. Would anyone have any suggestions? I've wired up plenty of switches before, but not many that switch audio. Plus - I don't know how many wires are inside the cable. My head unit is a Pioneer DEH-P4550 by the way. And just to confuse things a little more, I wouldn't mind hacking the cdi-200 cable so that I can charge my ipod while it's in the car. I can easily get the pinouts for the ipod docking plug.