Features:
(1)The monitor has 4 image models. It can show single, dual, triple, quad image, please switch it through the AV button.
(2)The power cable of monitor has 6 wires, their definition as follows:
Red wire: 12-32V
Black wire: GND
Gray wire : trigger wire, control V1
Green wire : trigger wire, control V2
Blue wire : trigger wire, control V3
Brown wire : trigger wire, control V4

For example, if the Gray wire has 12 volt, then the monitor will only show one image of V1 camera. The rest can be done in the same manner other trigger wires. So please according to your request to connect those trigger wires to the left light, right light and reversing light. Other, if you want the monitor always shows four image all the time, then those trigger wires need not connect to anything.

(3) Car camera
- Image Sensor: 1/3" CCD Sensor
- Signal System: PAL default
- Horizontal Resolution: 700TV Lines 
- All cameras have one red (or white) wire on the 4pin connector, we send Mirror Image camera as default, if need Non-Mirror Image, please cut the wire.

It Is Important Before You Purchase This System:
-We send U-bracket as default, we also provide metal bracket.
-We send monitor without speaker as default.
-We send 15m(49ft) as default, we also provide 5m(16ft), 10m(32ft) or 20m(65ft) lengths.
-We send black shell camera as default, we also provide white shell camera.
-The backup camera do not has audio output, we also provide camera with audio.