We ordered our Mt. Rushmore with the generator prep, and the way they do it at the factory would be tough to duplicate at a dealership. The start switch is on the bedroom wall shared with the washer/dryer, with the main wiring from the generator to the panel concealed almost entirely. As for the stereo, I threw out the receiver/cd player (Memorex I think) when I took delivery. I put in a JVC receiver, dvd changer, satellite receiver and vcr. I chose JVC because they had quality receivers that would fit on the shelves in our entertainment center, Sony and several others did not. I had about $375 total invested, but much better sound than the OEM system. By adding an inverter the receiver could be used when dry camping, but your am/fm range is somewhat inhibited by the lack of an external antenna and the aluminum framing. An antenna could be mounted on the outside wall, and a marine type would be your best bet. The only weak part of my system are the speakers, but they are "acceptable". Because of the way they are mounted refitting may be difficult, but that's another day.