Inverter Questions,Battery pack under bed

if you look from under the truck you will find a hole on the floor on the drivers side under the side box it will be covered by the rubber pad, cut a X in it with a knife to run the wires up into the side box then if you look in the side box you will see a few holes that are covered by cardboard/carpet on the inside, pick one that will be close to were you will put the invertor inside the truck, cut a X in the cardboard with a knife and run the wires into the invertor.

min of 50 amp fuse (i have twin 50's on our's) and very heavy wire i used 0

thats the way my company did it in our last pro star and that is the same way we have it in our volvo

BTW if this is a company truck have them do it or you may be looking for a new job