Hooking up backup camera in 1984 Vanguard

Harvey51 wrote:
Just use a bare wire wound on each battery terminal to connect power to camera and monitor.

It isn’t very complicated - just 12 volts to camera and monitor and a coax cable from camera to monitor.

I chose to use power from the motorhome house (propane detector circuit) via a switch on the driver’s seat so I can use it while driving - very handy when pulling a trailer with kayaks and seeing wildlife without scaring it when camping. I mounted the camera at the top of the rear window, aimed at an angle so I can see the hitch and kayaks - very handy when hooking up and the angle provides a lot more distance sense than a camera mounted on the license plate. I can easily back up to half a foot from a post.

The system I’m using supports both coax and wireless connection from camera to monitor. I use the coax in the motorhome but have installed another one in our 1992 van using wireless. Easier to install but I was a bit shocked this week when my friend who also has a DIY backup camera parked near our van. I had left the switch on and he got the view from my camera instead of his when he shifted out of reverse so no power to his camera.

I did a bench test and it's working well! Booted right up. I tried to hook it up to my reverse light and then just a tail light. Both putting out about 7-10V when engaged and nothing. There's something happening on the camera wiring end. I'll attach some photos of what the set up is back there - hopefully you have some advice. Thanks!

https://imgur.com/a/5oHeX25