1. Auto switching when reversing When reverse gear is on,
the system automatically switches from DVD/VCD video to backup camera video. And when parking is finished,
it will switch back automatically, which can ensure parking safty.
2. AV signal auto detecting power on/off Under power-off condition. When reverse gear is on,
the system automatically starts to search for the camera signal and display backup video.
When parking is finished, it will switch off automatically.