like the title says today my amp went totally goofy, worked about 1/2 the day and then later in the day started not turning on at all, then turned on again then off again. I have read on here before somewhere about there possibly being some loose connection on the harness? pretty sure it's not a ground or battery issue under the hood it has done it once or twice before totally random but worked again as soon as I turned the truck off and then back on again. any pointers? i guess if it keeps doing it I can whip out the tech2 but I want to see if it's just something I can check from under the cup holder or ???