Mirror and Rear view Video Intermittent -- again

[jrpend]

Greetings -

2015 Itasca Suncruiser 37F. The video for the sideview and rear view cameras is starting to go out...again. This is where it puts up a screen that says "No Video Detected" on the Rivermark XSG combination unit. I know that there is a plug connection under the dash that I have previously taped together. And while it is not hard to get the dash off to repair, it is tedious (have to remove the shelf).

Have other folks had this issue and what did you do to permanently fix it? I'm thinking the pins inside the connector must be corroding.

Thanks,
Jerald