Fishing wires in a 2108DS

[tinglett]

Note: maybe this should be posted over in electrical, but it may be largely specific to the travel trailers.

I have a Victron BMV-712 on the way to monitor my battery and I'm going to need to fish a modular phone cable from the display down under to the battery. I'd like to put the display, and possible other future gadgets, in the normal control panel space by the front door.

Has anyone taken a shot at doing something like this? What did you end up doing?

The walls seem pretty solid, though I haven't tried anything to test that theory. I see the existing wiring all shoots up into the ceiling. I've done a little basic wire fishing when I installed the MaxxAir fan over the bed, but it was pretty trivial work. This would involve quite a few obstacles and still makes me wonder how I'd transition the wiring down below the trailer.

I'm thinking I might need to conjure up some piece of trim to run along the wall/ceiling joint above the door so a little bundle of wires can run toward the front and into the wardrobe cabinet by the bed. From there I think it'll be pretty easy.