My battery keeps draining over night. I have factory amp sub under my backseat. I check the charging system and battery, everything checked out good. I hear a pop from the sub every now and then from the sub when I turn the truck off. I checked the amp after the Rick was sitting and it is hot to the touch. I pulled the plug and tested the wires to the amp with the truck off and I have 2 wires that have 12 volts running to them. Shouldn't I only have one hot wire that stays on when the truck is off. Please help!!!!

 

Im not about factory but if it was a aftermarket yes a remote ground and hot