The primary disadvantage I see is the need to put some kind of cap on both the camper side of the harness and the truck side of the harness when removing the camper. This is so that neither connector gets filled with dust, mud, or corrosion that could keep the units from either being plugged together or getting the contacts fouled so badly that electrical contact is impaired when the camper goes back on the truck.
My Tundra came with such caps in the glove box with dire warning to use them when removing the tailgate.
.ps. Place some objects behind your truck in strategic places to mark the corners of the viewing area with the original set up. That way when you try new locations for mounting the camera, you can verify you are getting a reasonably similar result. Might shorten the error part of trial and error.
Edited by PaulT, 26 December 2016 - 08:31 PM.
I thought getting old would take longer.