Here's a wierd one and I can't figure it out. I have an 02 2500, and the radio will work and play a cd, but. If I turn the radio up to a certain level it'll just stop playing. Lights still run, and the cd will still play too, just no sound. I ran an extra ground and still have problems. I can eject or turn the radio off and it'll go back to working again until I turn it up more. Then no sound again. I think I can hear a relay in the dash clicking when I unplug the speaker wiring connector. Is there a possibility it gettin hot and kicking out? Anyone know anything about this kind of problem? Thanks Chase.