Test and Finalize System Operation

What happens here

After installing both cameras, turn on the monitor inside the van. Plug the modified cigarette lighter adapter power cable into the van's cigarette lighter socket. Switch on the van's lights and the camper's lights to power the respective cameras. The monitor should display the camera feeds, ideally in a split-screen view. The presenter demonstrates how placing the van in reverse automatically switches the monitor to a full-screen view of the reverse camera feed (if wired to the reverse light, though in this case, it was constant power for the van camera). He shows both the van's rear view and the camper's rear view simultaneously on the split screen, confirming proper functionality. The monitor has sound and various adjustment options. Once the van is put into park and the lights are off, the cameras power down.

Goal: Verify the functionality of both installed cameras and the monitor.