He’s probably talking about running some 1 or 2 guage wire from the truck battery to the rear bumper/hitch area, with some Anderson type connectors to make a direct jumpline to the trailer battery box.Only going to use it on one vehicle, don't know what a remount winch kit is. Does it work off the truck battery? It has a power jack that uses the same connector as the trailer, plug it in to the truck to raise or lower the hitch. Does the winch kit work something like that?
Yes, that works. I keep a jump box in the truck because IMO its easier than using jumper cables and is available for tractors, trucks, trailers, w/e

16ft Anderson™ to Anderson™ Cable
The 16ft Anderson™ to Anderson™ Cable provides the option to increase distance, up to 16ft, from the solar set up to the vehicle to get the most out of the sun.
