Here's a general overview, but remember this is NOT a substitute for professional installation or consulting your owner's manual:
1. Identifying the correct wiring harness:
* Factory Harness (if available): Some Durangos may have a pre-wired harness tucked away that just needs to be connected. Check your owner's manual or under the rear bumper/tailgate area.
* Aftermarket Harness: This is the most common scenario. You'll need to purchase a harness specifically designed for your year and model of Durango. These usually come with detailed instructions. They typically connect to your tail lights wiring using connectors or by tapping into existing wires. Make sure the harness is compatible with your trailer's wiring (4-pin, 5-pin, 6-pin, or 7-pin).
2. Accessing the wiring:
* Location: The wiring for the tail lights is usually accessible by removing panels in the rear of your Durango. This could involve removing the rear bumper cover, accessing panels in the cargo area, or even removing the interior trim around the taillights. Again, your owner's manual is crucial here.
* Protection: Always disconnect the negative battery terminal before working on the electrical system to prevent short circuits.
3. Connecting the harness:
* Tapping or splicing: The aftermarket harness usually involves tapping into or splicing into the existing taillight wiring. This typically uses small connectors, but some may require splicing wires together using wire taps or solder.
* Connector plugs: Some harnesses use connector plugs that fit directly into existing wiring harnesses.
* Grounding: The harness will require a good ground connection. This is often a bolt or other metal part of the vehicle's chassis. Ensure a clean and secure connection.
4. Testing the connection:
* Test lights: After connecting the harness, use test lights to verify that power is reaching all the correct wires in the trailer connector.
* Test with trailer: The best test is to connect your trailer and turn on the lights to confirm everything works correctly.
Important considerations:
* Proper tools: You'll need tools such as wire strippers, crimpers, a multimeter (for testing), and possibly a socket set or other tools to remove panels.
* Safety: Work carefully to avoid short circuits and damage to your vehicle's electrical system. If you are unsure about any step, seek professional help.
* Fuse protection: Ensure your wiring harness has the correct fuse protection to prevent overloading the circuit.
* Trailer braking system (if needed): If your trailer has electric brakes, you will need a braking system controller in addition to the standard wiring harness. This is usually a separate installation.
If you are not comfortable working with automotive electrical systems, it is strongly recommended to take your Durango to a professional installer. Incorrect wiring can cause damage to your vehicle's electrical system or create dangerous driving conditions.
