Car amplifier and subwoofer (subwoofer is already in a speaker box)

When I traded in my pick-up truck, the car dealer said I would not receive any extra value for my truck's stereo system. So, I ripped it out before trading in the truck and am now selling my Bazooka amplifier and subwoofer. The Subwoofer comes in a box that fits behind a pick-up truck seat. It is really, really, really f---ing loud. $80 OBO for both. See pics.