Trying to find out some info about an issue im having. My wife normally drives and she heard a pop one day, that sounds like a speaker pop. After that no sound coming from the speakers, no sound from radio , no sound from bluetooth calls , etc. Im thinking maybe there is some amp that drives the speakers that could have gone bad or is everything integrated into the sync touchscreen unit as one? I tried pressing the radio power button a few times and it gave the same loud "pop" Can someone can help point me to a thread or repair for this type problem before I go to the dealer?