Hey all..sorry for getting into this so late! If you have one I would check the amp draw on the wire going to the battery with everything on max output with an inductive lead..I would make sure you don't overload that wire..if you don't have one I would still run another 8 gauge wire to the battery since you probably will come close to using close to 80 amps with everything on..the blower on high can hit 40 amps by itself..plus 20 amps on the stereo..the fuse on the amp may give you an Idea what it really is rated for max wise..
See you Friday
Rich