Rear View Camera

I have several cameras though it's a system I pieced together and have added to over the years so can't provide links. I have 2 rear cameras, one looking down for backing up, the other looking rearward. I also have a camera mounted on the passenger side of the camper. I travel solo and this covers the passenger side blind spot, both for lane changes or when pulling out at angled intersections and backing out of parking spaces like at rest areas where they want you to pull in at an angle. I'll be honest, I like the field of view from the passenger camera so much I'll probably add one to the driver's side. I initially tried wireless but kept having reception problems at the worst times so I went wired. I took the easy way and have connectors at a cabinet near the pass through window then run the wire through the pass through and above the truck headliner to the displays.