Well, after a few busted knuckles I finally found the pre-installed wiring for a brake controller. After searching the entire internet for a picture of this thing "before" it was wired to anything else, I came to the conclusion that I would have to do it myself, and document so that everyone else could share in the fun!
In my new experience at this, I have found what I believe the easiest way to install your wiring harness for a brake controller.
Remove plastic cover from area below steering column. Don't worry about the size of the plastic, or breaking anything. There are only two screws holding this in (outlined in red below, the one on the left is where the red ring is, you just can't see it due to the camera angle, it is below the rolled edge of the plastic). After these two screws are removed, gently pull the cover all around the edge. The clips holding it in place should release with just a little bit of pressure. After the clips release, gently pull it out. It will not come completely out due to the switches in the lower left, the wiring will hold it up. Don't worry, you don't need to remove the cover from the truck!
After removing the cover, this is what you will see:
Can you see those three flags that are attached to the wiring? One is red, one green, and one white? Let's have a close up!
What is that the white one says?
Success, I (and you) have finally found it!
Now just plug up the wiring adapter that will connect this plug to your brake controller:
And the rest is up to you! You can mount the unit wherever you want to, so long as your have enough wire to reach. If you are real industrious you can add as much wire as you want to be able to truly mount the controller wherever you want. I am not showing pictures of my final set-up for two reasons: 1) I have not finished installing the controller (I do not know where I want to put it yet
) 2) It does not matter, put it where ever!
Many people have suggested that you just lay on your back and look up under the dash and you will be able to see the wire. That may be the case for some people, and that is pretty easy to do as well. I tried off and on for two days and could never see the plug. I then decided to take the plastic off, and there it was! Could not be easier.
I hope this helps someone out there looking to start towing, and if anyone has any suggestions to make this process any easier (or pictures of their final mounting spots for ideas for others) post away. This is a thread for all newbies to towing (like myself)!