The first step
Verify the signal type of the reversing camera purchased and the signal support of your own car screen system
The 4Pin reversing camera looks a bit like the driving recorder streaming camera. Many people often buy it wrongly. One is an analog signal and the other is a digital signal, which is not universal. The 4Pin reversing camera can only be installed on the car screen, not on the car screen. TV, driving recorder, multimedia rearview mirror, video recorder and other devices

There are two types of reversing camera signals: CCD and AHD signals
CCD lenses can generally be installed on DVD screens, MP5 screens, and Android screens.
AHD lens, you need the car screen to support AHD signal to use it, Android car screens basically support it, the older generation The car screen basically does not support AHD signals. You can enter the settings related to the reversing signal on the car screen to see if there are AHD-related words. If there are words related to AHD, it is supported. If it cannot be found, it is not supported.

For specific identification methods, please refer to the fourth guide on this page.
Step 2
Connect the lines according to the figure below. Pay special attention to the reversing trigger line and make sure it is connected correctly.

What needs to be noted here is that the original old wires may be bad.
At the same time
Each manufacturer's cordset connectors have different definitions and ratings, which may cause incompatibilities. Therefore, please try to install matching wire sets when installing.
Step 3
Set the signal matching the reversing lens in the car screen system

After setting, be sure to save if needed and restart the car screen. Some CCD lenses do not have a setting place on old car screens, so they can be used after being installed. Some car screens share a port with TVI and AHD. When the AHD lens cannot be displayed when AHD is selected, you can try other signal tests such as TVI.
Step 4
Start the car, shift into reverse gear, and check the working status of the camera
If there is an abnormality, please carefully eliminate the above links.
When there is no solution, there is a possibility. New cars released in recent years have original reversing cameras with original screens. Some of them have program protection and do not allow the installation of third-party reversing cameras. Please consult us for details. Car sales manufacturer.