I went with the low profile newest mach 13,500 Btu . Only because if I end up in dry for awhile, I shouldn't have any issues with the Honda's handling that and something more. But actually it's been in the 80's some days and we haven't had any issues cooling the unit through out like we did last year. So far, so good, even in the rear bunk area. As for the wiring, all was already there from the factory according to the installer. Hooks in with the ducting already there. Yes, installed in the front bedroom. Just had to locate the wires and install the unit and it's working great.