Any help would be greatly appreciated. Recently installed avh4100nex in 2006 corvette. The biggest complaint is I'm unable to get any sound from the unit. The USB is connected to port#1, and then attached to my Iphone6 with apple lightning cable. Most of the time I am unable to get carplay to function. If I go through bluetooth I get periodic sound as well. Using the HD Radio netted the same results. There is no power issues or wiring connection issues, the sound comes through sporadically. The timer counts down and the mute is not activated. I've reset the system with no luck. I've tried usin
