Before I go cutting a hole in my brand new camper...

[wborisenok]

...can anyone here clarify something for me? I'm going to be installing a Tadi Brothers backup camera this weekend and I plan to tap into the middle clearance light for power. Will install the camera just below the light. My question is, are these lights ALWAYS on whenever the trailer is plugged into my truck and being towed? I'm brand new to this stuff and learning as fast as I can, but damn there's a lot to learn! I've watched dozens of videos for this install so I feel pretty confident in executing, but this is the one thing I'd love extra confirmation on. I suppose I'm being lazy by asking prior to trying myself, but I've been so busy trying to make sure I learn everything else that I just haven't had the time. Any help is appreciated!