Check out the Vakry wireless system. Very inexpensive on Amazon. Easy camera install using 12v clearance light wiring, or entry point if you’re so equipped. HD video is great on dash mounted monitor. I installed this on my Micro Mini last month. Works great, but does require you to have your lights on while driving.
Jim. 2021b Micro Minnie 2108DS, 110w foldable solar
2021 GMC Canyon Denali 3.6L Gas 4x4, Husky C-Line
170AH LiFePo4, Xantrex XC2000, Champion 2500w df