I have a 2001 GT with a Bose system(GM provided) . It's an awesome sound for a stock car. The problem I have had for the past year or so is that the rear speakers only work when the temperature is very warm(outside) about 80 degrees or hotter. If the car has been sitting in the sun and it gets very warm, than the speakers usually will work. Once it cools down, they stop working. I don't know if the problem is with the speakers or the CDplayer/radio. Told the crew at my dealership and they had no idea what it could be. Me either. At present I can enjoy my stereo (to the full) only in the warm summer months. Any ideas or suggestions? Chumley![]()