In order to get the ipad2 To get working for music and pandora is connect the original ipad cable to the usb port on the avicz130 with the separetly sold 40$ tv hdmi out cable and you will be able to control the HU this worked 100% and it will also charge it i also used to get the error
You dont need no 50/51 cable just the 40$hdmi out cable and the origianl ipad cable and the other cable that goes ontop of the ipad for sound