olskoolpup
+1y
for under the bed, youll need to fab up a mount. other than that, grab some 2-gauge battery cable, probably about 15-18 feet, new battery terminals, couple ring terminals, and i used a Stinger 0-gauge wire splice to connect the new cable going to the battery to the factory pos wire. also used an ANL fuse at the battery with a 150 amp fuse. you could use a 150 amp circuit breaker as well.