Trailer Wiring Harness Adapter Installation - 2006 Dodge Ram 1500

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How to Install a Wiring Harness Adapter on a 2006 Dodge Ram 1500

Today we are going to install part number 37185 on an 2006 Dodge Ram 1500. And this has the factory 4-pole installed with the vehicle, from the factory. What we are going to do is upgrade this up from a 4-pole to a 7-pole and 4-pole combination. And we are going to start by using this factory cut-out here for the 7-pole itself. It is actually just a cover. It just pops off, and we can install our 7-pole adapter right there. Before we install this into the bumper, we have to do one little modification, because the bumper is just a little bit too small. Basically we are just going to grind the little edge off here, just about 1 inch on the passenger side - just enough to help it pop into place, right here. Go ahead and install it. There it is, just enough room to snap into place. Then we will put our four bolts in to hold it secure.

OK, once that is installed we can go ahead and make our electrical connections. We have our factory 4-pole here. Let us go ahead and take off the cover, and then we will install the adapter onto it. It is a good idea to add some dielectric grease. This has some on this side. Let us go ahead and add a little bit to the other half. All right, I am going to run a zip tie around to secure it, too, so it will not ever come apart. Now we will go ahead and do our ground screw. What we will do is run it through the frame here. We will just put it at the bottom edge of the frame here, like so. And we will use a ground screw to install it. Now we have got the rest of the wires to contend with. And we are just going to wrap these up and just zip tie them to the existing factory parts. We are not installing a brake controller hot lead. That is what these two wires would be for: blue would be for the brakes, the black would be for the hot lead, and the purple wire would be for the reverse lights. We will bundle these up and put it up against the parts. Now I have tucked it out of the way and we can get to it easily for future expansion. And that covers our install of part number 37185 on our 2006 Dodge pickup.

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