Something I was used to was missing from my Lexie 255 GTS. Turning on inside lighting from outside the coach reaching in to the lower cabinet switches inside the door. Mine had the switches, but the only light was the outside porch light. What I did was to drill through from behind the exterior porch light angling a long wood bit to go through inside the upper kitchen cabinet. (so wiring is hidden) I then wired from the porch light to a new interior light mounted to the same upper kitchen cabinet. This has been very helpful when coming home to the unit in the pitch black!