Even with mixed reviews, I purchased a Furrion FOS48TA-BL camera/monitor because I wanted to see behind me while driving. Much to my surprise, I found that the "pre-wired" mount on my 2016 Surveyor 226RBDS was wired to back-up lights. I had no idea the 7-pin plug had a reverse light in the mix (I have never seen a TT with back up lights) So.......
I removed mount and light and capped back up wires
and switched the power source to the center running light.
put it all back together and camera comes on with lights. Now I just need to find a good place to put SMALL monitor so it'll be easy to see going down the road. Will update after a little use.
The worst day camping is far better than the best day working.