I Have an 01 GTP Sedan. My radios used to go out on the drivers side(front and rear) every once in a while. Now it happens quite frequently when i hit bumps sometimes not even from bumps just smooth driving. I have the stock speakers, i checked to make sure that the wires in the trunk were all plugged in and secure. Anyone have any idea? I have an after market headunit with 1 12" sub and amp.![]()