is there any excess moisture in the trunk or around the amps? and do they get decent air? (you dont have crap all up against the amps) have you checked all of the harness connections by the head unit? and double checked to make sure the wires aren't mixed up or crossed?
no excess moisture in my trunk. i leave my seat folded down so the amp has plenty of circulation. i have checked the harnesses and none are mixed up.