How do I diagnose and repair my car's stereo?
I've had this 2001 GMC Jimmy for about a year and a half now and the stereo
doesn't work. When I first got the vehicle, the rear right speaker would work but
after a month it stopped working. I removed the head unit and checked all the
plastic connections to see if they were seated properly and didn't see anything
wrong there. What should I be looking for?