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I have. I used 14gauge wire. The crimp on connectors I had on hand fit the dummy connector inside the cabin. I loosely followed AB's routing instructions. I found a connector at NAPA that fit the frame at the hitch. The PIN diagrams are available online. Everything works fine. The trailer icon in the dash even flashes with the directionals.
My notes show the wires as follows...
Green = Right Turn Lamp
Yellow = Left Turn Lamp
Brown = Tail Lamps
Blue = Brake Controller
Dark Green/Brown = Reverse
Orange = Aux Power Supply
Red/Yellow = Rear Fog Lights
Don't know where you live, but I had my local Hitch install shop put the wiring in my '08 LR3. Turns out it had the connectors and all they had to do was plug things in. Cost me $50 and I was in/out in about 30 mins. Couldn't have done it myself for that. You need to be careful with add-on wiring as the circuits have some electronics in them and are rather 'fragile'.
I actually did it myself in the end and its not that difficult at all. I do have to now build a plug that has a load resistor as my current trailer has LED lights.
Bought the stock LR trailer wiring and did it myself. Also have a NATO plug installed on the right side to attach my small trailer that used to go behind my Pinzgauer.
Has anyone seen a trailer harness with these plugs before? I bought a used hitch on eBay and this is what came with it. It looks like it has everything included in the aftermarket wiring kits plus a few extra plugs/wires. I figured I should find out what the "extra" connections (circled in red) go to before I just chop them off. The two black plugs look like they might fit the taillight and fog light but there is no green connector in the cabin that I can see.
I'd leave them on, unless fitting it in a space is tight. I don't recall seeing the green plug but I installed it years ago. No reason to risk damage and idk if any of the wires interconnect inside the cover. They could short to ground if they touch metal, assuming they have power.
I actually did it myself in the end and its not that difficult at all. I do have to now build a plug that has a load resistor as my current trailer has LED lights.
I had a light controller with that same problem. My trailer was fine, then I sold that LR3 to the company and the LED lights constantly flash about 1 time per second. Load resistor is a definite yep.
I decided to strip down the harness so it would be a cleaner fit inside the cabin. The green plug was wired to the two circled black plugs. Maybe this harness came from an LR4 or LR3 with the factory tow package?
