1. Gather the necessary materials and tools.
* Trailer wiring kit
* Electrical tape
* Wire cutters
* Crimpers
* Drill
* 1/2-inch drill bit
* 7/16-inch drill bit
* 1/4-inch drill bit
* Phillips head screwdriver
* Flat head screwdriver
2. Locate the trailer wiring harness.
* Open the tailgate and remove the spare tire cover.
* On the left side of the cargo area, you will see a black plastic cover with a connector on it. This is the trailer wiring harness connector.
3. Remove the black plastic cover.
* Use a Phillips head screwdriver to remove the two screws that hold the black plastic cover in place.
* Once the screws are removed, lift the cover off.
4. Connect the trailer wiring harness connector to the vehicle's connector.
* Carefully align the trailer wiring harness connector with the vehicle's connector.
* Press the connectors together until they click into place.
5. Run the trailer wiring harness to the front of the vehicle.
* Route the trailer wiring harness along the driver's side of the vehicle.
* Use zip ties to secure the wiring harness to the existing wiring loom.
6. Drill a hole in the firewall.
* Use a 1/2-inch drill bit to drill a hole in the firewall, just behind the battery.
* The hole should be large enough for the trailer wiring harness to pass through.
7. Install the grommet.
* Insert the grommet into the hole in the firewall.
* The grommet will help to protect the trailer wiring harness from damage.
8. Route the trailer wiring harness through the firewall.
* Pass the trailer wiring harness through the grommet in the firewall.
* Pull the wiring harness into the engine compartment.
9. Connect the trailer wiring harness to the battery.
* Connect the red wire from the trailer wiring harness to the positive terminal of the battery.
* Connect the black wire from the trailer wiring harness to the negative terminal of the battery.
10. Test the trailer wiring harness.
* Connect the 4-pin trailer connector from your trailer to the trailer wiring harness connector near rear bumper.
* Turn on the headlights and brake lights on your vehicle.
* The corresponding lights/turn signals on the trailer should illuminate.
Remember, if you encounter any difficulties or are unsure about any step during the installation, do not hesitate to consult your vehicle's service manual or seek the assistance of a qualified auto electrician.