Connecting reverse camera to the factory touchscreen head unit

[ijester]

I recently got a factory touchscreen head unit and reverse camera from a 09 cx7 and installed it in my 07 . Head unit works fine however there is no wiring provisions in the car for the reverse camera as it was not available at the time of the 07 model. I know what the four wires on the camera are but i cant find any info on what pins do what on any of the 3 unused connectors on the lower back of the head unit. If anyone has a diagram it would be a huge help. Cheers

 

[ijester]

Sorted out, done

 

[cathyxiao]

two power lines, in general the red one and the blackone

another line connects the"backup camera" line in the system

 

[cathyxiao]

here is the detail:



* Take out your stock license plate light at the back of your car

* Fix the camera to where the stock license plate light was

* Connect the built-in license plate light of the camera to where the stock license plate light was connected to get the power

* Connect the power of the camera to your brake lights - red wire to positive and black wire to negative

* Connect the video cable of the camera to the extension cord

* Connect the extension cord to your car monitor

* You will see the images when your car is in reverse shift.