I saw a picture online of a tacoma that had a dual battery system mounted in the toolbox. It was strictly for auxiliary "house" needs. Im wanting to do a setup like it in my toolbox to blow up mattresses, charge phones, computers, etc. Anyone have a clue how one could set this up and what I would need to run a system like it. Cant find the picture anymore but some of y'all gotta know how to set it up. Electrical systems confuse me so I'm puzzled as where to start. All help is appreciated! I should add that since my truck is an SR5 it didn't come with the inverter from the factory. Shoot!