My audio began (within 500 miles of my warranty running out, of course) to pop and all speakers but one in the dash to intermittently cut out. This sounds like a loose connection, as it will often happen when I hit a bump, but not always. It has a very loud pop and crackle, and when the speakers cut out it will sometimes return after another pop, but will also be restored when I cycle the power to the car. These speakers are always active due to the voice control and bluetooth, so I can't turn off the radio and ignore it.
The dealer tried to diagnose the issue and came back with "we think it might be in one of 2 electronic modules, but we can't tell without a lot of extensive tests." I know that there are no codes in the computer showing problems.
Is there a way to find a service bulletin for this, a wiring diagram, or something else that could help me identify what's going on? I suspect I'm not so lucky as to be the only one to have this particular issue.