I have a kenwoood kdc-mp438u car receiver with built in ipod controls. it has been working great but now all of a sudden when I plug my ipod into the receiver I get an ipod error message. my usb cable works fine w my computer and I hooked up my dads ipod to see if it was my receiver and it worked fine so the problem has to be with my ipod. If anyone can help it would be greatly appreciated.