Garmin camera mounted on bumper - works great. Bracket welded up from some scrap steel. Spare tire is under the trailer. Transmitter is mounted in cabinet above bed and wiring was run concealed in ceiling cavity and an interior wall at the rear.
They don't need to be mounted up high and exact mounting location doesn't matter much because the image can be adjusted during setup mode. Cars that have factory backup cameras have them at or near bumper height. The camera is nice to have but not as good as DW spotting when backing into a site.
