Bought a 2nd Ram camera and installed it in the fixed part of the upper step of our Northern Lite. So unplug the tailgate camera, remove the tailgate, load the camper and plug in the camper camera.
If I was building a camper I'd pre-wire for a camera somewhere higher but this location has worked very well. It would also be nice to get a camera view other than whilst in reverse (we usually flat tow a Jeep) but I haven't gotten around to making that happen. It's a nice feature that I'm glad I have and it was an easy DIY.