Apparently one was never installed? Would like to be able to unload camper from truck and still have a battery
to operate lights/furnace. Truck is a ford diesel so accessory wire in 7 pin only works when ignition is on.
Any advice on where to place battery
and how to wire one in?
Was thinking of creating a harness with accessory/ground off accessory battery
into 7 pin and simply storing battery camper and truck box.
Thanks in advance.