Hi Roni - If you look through my solar power thread: https://www.hilotrailerforum.com/f28...00-watts-4354/
, you'll see how I did it.
Basically, I mimicked the way other wires are routed from the bottom half to the top that exists in the wiring bundle that all our trailers have. It would have been perfect if I had run the wires down that wire bundle, but I didn't wand to cut a new hole in the top over that wire bundle. Having the solar wires running down the wall next to the refrigerator has worked well for me though.
Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew