
The installation method for the rear camera of a dash is as follows: 1. Plug the dash cam's connector into the power source to determine the required length of the connecting cable; 2. Begin routing the cable by tucking it into the plastic panel of the car's roof lining, which ensures both aesthetics and eliminates the need for additional fixation; 3. Connect the camera—if you're unable to do it yourself, seek professional installation; 4. After connecting the camera, proceed with securing it by installing it onto the removed panel and then reinstalling the panel back into the car; 5. Check the display of the dash cam. If the display is clear, adjust the angle for a better view of the rear of the vehicle.

I installed a rear camera myself, and the easiest way was to tuck the wire along the edge of the roof liner. Then, route it down along the A-pillar trim on the passenger side, and loop it around the side of the rear seat to the trunk. The entire process can be done by hand, tucking the wire into the gaps of the seals. Choosing the camera position requires careful consideration—it’s best to stick it slightly above the center of the rear windshield. Remember to clean the glass with alcohol before applying the 3M adhesive. Make sure the connector is securely plugged into the main unit, and finally, test the camera angle after powering it on. Avoid having the license plate occupy too much of the frame; ideally, it should capture three lanes. Leave some extra slack in the wiring to prevent it from being pulled or snapped when opening and closing the trunk.

Last time I helped a friend install a rearview camera, I realized the key is in the positioning. The center of the windshield is indeed the most ideal spot, but make sure to avoid the wiper and defroster wire areas. Simply use a suction cup mount for temporary placement to test the view first, and confirm there are no blind spots before final attachment. For wiring, I prefer routing it through the trunk liner into the cabin, then along the floor under the rear seat mats up to the center console. Although it's a bit tedious, this method ensures no exposed wires are visible. A reminder: avoid letting the wires get tangled near the brake pedal area, as it could compromise safety. When securing the wires, add a plastic clip every half meter to prevent rattling noises from bumps.

The rear camera installation mainly involves three steps. Position confirmation is crucial—start the vehicle first to test potential mounting points. For the fixing step, prioritize adhesive mounts, pressing firmly for thirty seconds for better stability. When routing the cable, guide it along the roof trim gaps; gently pry open the rubber seal to tuck the wire inside. Finally, plug in and test, focusing on adjusting the tilt angle so the horizon sits at the one-third mark of the frame. If routing through the rear bumper, be sure to choose a camera with a waterproof housing.

I was quite nervous during the initial installation, but later grasped the trick. Cleaning the rear windshield thoroughly is essential—it must be dust-free and oil-free for a firm adhesion. Routing the wires turned out to be surprisingly simple: lead the wire from the front dashcam, gently tuck it under the roof trim, run it down along the door seal, and protect it with a rubber when passing through the trunk lid hinge. Fine-tuning the position is crucial to ensure a complete view of the road within 20 meters behind the car. After completion, using a heat gun to blow on the adhesive makes it more heat-resistant.

The two biggest concerns when installing a rear camera are misalignment and messy wiring. When selecting the installation point, I place a reference object outside the car and check the screen inside to ensure it's centered. For wiring, I prefer using an ice cream stick to assist in pushing the wires, which is easier than using fingers and avoids scratching the interior. The trunk section is hidden in the soundproofing cotton, and the spacing of the cable ties should not be too tight. A trick for angle adjustment: make sure the edges of the side mirrors just enter the frame for the best view. Finally, remember to perform a water spray test—if any water seeps in, seal it immediately with adhesive.


