Portable navigation with AV interface can be connected to the camera image
Vehicle navigation links a reversing signal, reversing, will automatically switch back to the video, I do not know how to switch your portable video source oh.
There is a video input interface can be connected to the rear camera with the camera, there is no use
Should be able to, AV are analog video signal.But the car navigation links a reversing signal, in reverse, it will automatically switch back to the video, I do not know how to switch your portable video source oh.
