Hey Bonee, thanks for the reply. Here’s the video you requested.
the unit was working great from probably 2 years before I wanted to put the camera to it. Since the camera the only wiring changes I made were to connect the camera. So at the back I put ground to frame, and trigger wire to reverse lights. This camera has a trigger wire at the head unit too and suggested connecting it to the head unit to “complete the circuit” per the instructions. So the other camera wire is connected to the purple with white stripe wire and the RCA to RC slot of the unit.
thanks again for any h