Originally Posted by Jon in AZ
The unit RT installed on mine was not sealed against water entry. Since my coach sat for most of a year nose down (which caused a number of water related problems), it appears water pooled in the brake light area, causing extensive corrosion and probably a short that melted the plastic. It was a poorly designed, non-Chevy part. I looked over the aftermarket replacements, some of which appeared to have the same problem, and decided to install a sealed OEM Chevy brake light, no camera, for now. I left the camera wire in place in case I find a suitable aftermarket unit later.
I haven't really missed the camera, thanks to very good side mirrors.
My Chevy Express-based Airstream Avenue (think of your 190P but with galley and bath reversed to opposite sides) is the first vehicle I've owned with a backup camera. While I agree the Chevy side mirrors are excellent for removing blind spots while driving, I really appreciate the rear view camera as I would be backing almost blind without it.
After an initial adjustment period to just rely on the camera, it is very reassuring to have when backing up. If mine were to go out, I'd consider it a mandatory safety feature to replace immediately. The good news is you left the existing wiring.
As far as your overall repairs, is the camera your last remaining issue?