How to Install the Wiring for a Rearview Camera?
2 Answers
Steps for installing rearview camera wiring: 1. Insert the OEM accessory camera wiring harness into the drilled hole of the rear license plate light; 2. Remove the trunk liner and pull out the waterproof wiring grommet; 3. Use a pulling wire to draw the camera harness into the trunk; 4. Guide the camera harness and data connector through the wiring hole of the grommet and reinstall the waterproof grommet; 5. Remove the left decorative panel in the trunk, connect the integrated power/data extension cable to the camera harness, and route it along the original vehicle wiring harness through the rear trim panel; 6. Peel back the door seal on the left side of the rear seat and guide the wiring into the rear cabin; 7. Pull out the integrated power/data plug and remaining extension cable together; 8. Reassemble the trunk, tuck the extension cable into the plastic panel gap along the door seal to the cockpit door edge; 9. Remove the storage box below the headlight, pass above the OBD interface, and connect the wiring port to the navigation system interface.
When installing the wiring for a rearview camera, the key is to locate the reverse light's power wire to provide 12V power supply. I recommend starting from the trunk, removing the inner lining to expose the bulb socket, and using a multimeter to test the positive wire (usually color-coded, such as red). Strip the wire insulation and connect the camera's red wire to it, while the black wire should be grounded to the car's metal body. The video cable needs to be routed from the rear to the dashboard in the front. I often use a wire to guide it under the seats and along the door seals, securing it with nylon ties to avoid being crushed. Before testing, ensure all connections are insulated with heat shrink tubing or electrical tape to prevent short circuits and blown fuses. Shift into reverse to check the image clarity; if it fails, inspect for loose wiring or incorrect connections. Tools needed include wire strippers, screwdrivers, and a test pen. Beginners can watch installation videos first for preparation. Safety is the top priority throughout the process—work with the power off and don’t rush.
