2012 Backup Camera Issues

I have a 2012 SV. Trying to get my backup camera working and looking for some helpful input. I checked the fuses, wires under dash and rear door jam seem fine on inspection, and the camera and monitor are getting power. When put in reverse the screen display is green, black, faded pink, sometimes feed is upside down, sometimes it actually works fine (for months). I found a video where someone with similar problems replaces the camera control module on an Infinity QX56. I can't even figure out if my Pathfinder has a CCM and where it would be located to replace it.

Any thoughts and/or similar experiences? TYA!