I have another project lined up for my truck that I'm going to get into soon. I'm going to add a secondary high-current power distribution bus with a couple of bus-bar distribution blocks at convenient points, to make it easier to add accessories. I've already replaced one of the battery terminal screws with an aftermarket one that adds an extended stud and a nut, where you can attach a cable with a ring terminal. And I've got heavy duty copper lugs, some #2 welding cable, a hydraulic crimping tool, and the distribution blocks waiting on a shelf.
Once that's in place, It'll be very convenient for adding ham radio gear, an air compressor, a power inverter and some other things I've been chewing on.