My avic-n1 head unit cd drive went bad so I got a avic-n2 headunit DVD CD GPS work fine but the AM FM radio XM radio or backup camera does not work hooked the avic-n1 head back up and they work, reset the avic-ns head unit no change The avic-n2 source menu say thye xx radio is not hooked up Thanks

Have you placed the nav disc in the n2, sometimes they need it to load properly the first time. If that's not it, then maybe it's due to the flex cable or the unit is just messed up, sry