I just bought a used Wilderness Yukon. There is a place for two batteries in back of the propane tank braces and some wiring for a battery. The red wire does have a fuse in it but I can't fnd a switch to run lights off a battery. I am eventually going to put a solar panel on top with two deep cycle batteries and an invertor for AC. If it is already wired for batteries, so much the better. Can anyone tell me if it has a battery switch for the lights? Thanks. I wrote to Fleetwood for a users manual but hat may take a while.