I ran mine under, wire tied to the gas line and such. Up the back I used small raceway from Lowe's. I found it in off white that is a nearly perfect match with 5er color. From 10' away you can hardly see it.
It connects to my phone so you can take pictures, it has a reasonably stiff 11’ wire so you can position the camera, has a dimmable light around the camera, comes with clip for the end for use as a fish wire, for $36.
Best regards, Mike
Mike & Doreen
2021 Montana Legacy 3120RL Super Solar
2020 Chevy 2500HD High Country
Wow, an endoscope. Fishing to a new level! For me, with my more mature rig, I've decided to do some preventive maintenance by replacing the rubber roof. After the old rubber is removed, I should be able to unscrew the edges of the plywood underlayment and slip a cable past the insulation and under the joints. If that becomes unfeasible, then back to all the great ideas collected in this thread. It's an adventure!
2006 3500RL Montana
2009 Duramax 2500 Sierra