Short video on how I connected my 3rd brake light on my camper shell on my 2018 F-150 XLT.
Thanks to a couple different posts on [ Ссылка ] for the writeups that lead me to wiring this correctly! Otherwise I probably would have just tapped into a taillight like I have in the past on older trucks.
(BTW- I ended up running a fused line directly from the battery to power the overhead light inside the shell)
![](https://i.ytimg.com/vi/hv9cyZclLHU/maxresdefault.jpg)