There are a few threads about this. The metal boxes are for interior use and not waterproof and should be swapped out for the waterproof plastic ones. If you use a long enough 7pin connector and cable, you should be able to terminate directly into a waterproof plastic box just under and behind the frame of the "A" frame in front (such that the waterproof plastic junction box is located behind the frame and under the body of the camper).
Every stop light is a staging light!
2021 Wolf Pup 16FQ.
2007 Chevy Trailblazer LT 4X4 Tow Package, Locking Rear, 157K Just pulled 16FQ 1,044 miles. Husky Centerline TS32215 WDH Round Bar 400-600Lbs.
CURT 51180 Echo Bluetooth Brake Controller (Love it!)
2004 Ford F-150 STX 4X4 Tow Package, 206K For Pulling TT in the sand