I gather these were done by a 3rd party. I found one online that looks virtually identical to mine, paint, windows, and interior trim, not the first time, so I guess they weren't uncommon.
https://www.purplewave.com/auction/110420/item/7309
I want to rewire the larger rear section to be dependent on an isolated battery bank, which of course discharges independently of the main battery.
Like so many aspects of interior trim, there's a trick to removing it, you need to know where and how to apply pressure. Yesterday I popped into an upholstery shop on El Camino, you can drive right alongside the main door. I asked a guy about paying him to remove and install it, maybe tweak bits of it - some of it is sagging funny. He said 'it's not hard, why not just do it yourself' adding that their rate is $140 an hour (ulp). He didn't offer up a tutorial, I'd almost pay that rate for a 20 minute tutorial. Just getting the ceiling trim off would probably be good enough, I want to wire the overhead lights and fan to the cabin batteries, make this thing into a legit camper.
I could fish the wires downward behind the thin plywood walls I think. Each side has a small feature with a switched light and a cigarette lighter port, neither works at present, could be handy for cell phone charging and attaching an inverter.
Anybody done it?