On my 2015 30DS - there is a switch for the 16' LED strip next to the awning. It replaces a door night light I guess. Bad feature though - in addition to turning on the LED strip, it also turns on bright LED lights on the front of the coach. Very annoying if you are parked facing a campfire full of people. And IMHO, a waste of power. I covered the headlights on a recent trip to avoid nasty comments like turn your headlights off. Dealer told me it's not a wiring mistake, so now I have to figure out where to cut the wires.
We fixed the light issue by separating the wire coming from the LED lights at the front from the awning lights. I added a separate rocker switch for the awning lights, mounting it by the door beside the battery control switch. I powered it from the light in the battery compartment.
Just this weekend, I traced the wires inside the front of the coach and found the one gray wire that was feeding the front LED lights connected to the awning lights. Cut the wire. Problem solved. Your solution looks good as well.
Has anyone else had problems with the FR3 tripping breakers while using 30amp service? With my 2015 FR3 DS30 it seems like when we have the AC and pretty much anything else on, it trips the breakers at the campground.