Video gauge/camera

Has anyone been successful in getting a camera to work in a video gauge? Looking to use an analog camera (RCA) on an Android headunit, it shows front and rear camera but don’t get any video from either, tried analog to usb adapter but doesn’t show up as an option in realdash.

I have tried 4 different usb video capture devices, all no luck as they seem to require an app. I tried an ip camera but again doesn’t seem rtsp stream is support … HELP!

Maybe this can be implemented in some way?

No thoughts?