I havent changed how it was hooked up before, when I took it out of the old truck I didnt unhook anything from the amps except the power, I just cut the wires so they I could take them all out of my old truck, so of the 4 speaker wire outputs, -+-+ the wires were hooked up to the middle 2, the +-. I will look at the manual for the amp and see what it says.
I had the volume at about 75% with the sub gain up fairly loud... basically i provided music for half of the cars there haha... til it stopped working that is
I know the amp got pretty hot because i started feeling back there to see and it almost burned me... so yeah... I think i need to either move it to a different spot, or get one with a fan that will fit into the same spot behind the seat.