Burl, I would clean up the foam spray that is all over your solenoid and disconnect switch, you never know when or where your going to have to fool with them. On the side of the road in the middle of the night with a flashlight in your mouth is not a good time to be cleaning foam away from electrical items,a nice day in your drivway would be better. Take another a real good look at my pic , too many " HOT " live 12v cables in the box!!!
Chas,I use a car polish on the front of my Trail-lite ( Van ) and I use 3m Marine Boat Cleaner / Polish on all of the fiberglass. Seems to work great . It's made for more harsh conditions and holds up better than regular polish or glaze.
Dario