I am using a generic ipod cable with my avic-x710bt. The cable has 3 composite cables and a usb just like the ui230v. I saw in this forum that any cable of this sort should work. I plugged it into my iPhone and it played music through the av1 input. No video though. It did not charge. iPhone stated accessory not compatible. When I set the input up for ipod the avic stated problem with ipod connection. Is this cable not compatible or does it not work with an iPhone 3gs?