(the camera cables on our power harness)
The correct way should be: Connect the "Camera +12V " cable (which from our Android screen) to backup camera. It means, your backup camera gets the power from our Android screen, and this is the only power source for the backup camera.
A, If you install the normal backup camera, connect the power cable: Camera 12V & Camera video input (yellow connector), Don't connect the "Camera Det".
(wire digram for the normal backup camera)
If you install the backup camera and find it not work, you need to go to the settings and make a proper setting for your backup camera.
The part is: Settings / rear camera
Remark: If your camera is the original camera, then choose "original camera";
if it is an aftermarket camera, then choose "aftermarket camera "
(camera setting interface)