I happened to spot this little widget (see picture) along the top of the front shell. It's the black wand-like thing with the wires attached.
The former owner identifies it as an amplified radio antenna. (We don't have a radio in the trailer).
It has a little red light that is on at all times. Since I park on a lot with no power I am concerned about parasitic drains. I pulled every fuse in the box including the two 30A main fuses and the light stayed on. The only thing that got it to shut off was the main battery disconnect.
Is there a way to disconnect this thing? Using the main battery shutoff isn't always convenient for me and I try to keep my parasitic drains to a minimum.