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Mounting Location for P3 & harness ?

ud92785

By ud92785
in Towing, Hauling & Hitches

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Panik Enthusiast

Panik

Posted
Posted

Has anyone added a brake to their 2014? Is there a GMC/Sierra specific wire harness?

 

If you are talking about the P3's there is a GMC/Sierra specific wireing harness that you can purchase so that installation is plug n play. I can't remember, but I think I purchased the harnes from Etrailer.com after I pulled my P3 out of my Jeep. The harness plugs into the black box up under the dash on the left side of the driver's footwell. (Sorry can't think of the proper term for the recepticle location)

 

Anways this is where I mounted mine after a failed attempt to get it to fit in the center drop down cubby:

 

Brake Controller

Ended up using 3M hook and loop for dashes and vinyl and its worked out pretty awesomely so far.
ud92785 Enthusiast

ud92785

Posted
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Posted

Scotty MIX & Panik, thank you both for your feedback. I was able to obtain a generic cable from my dealer, but I think I'll go ahead and order the GMC/Sierra specific cable when I purchase my P3 anyways to make things as simple as possible hooking up the controller.

 

I like the idea of having the controller up on the corner of the dash where I can keep an eye on it and it's easy to reach.

 

First though I need to find a used Travel Trailer that fits the wife's needs and our budget! Proving difficult - but keep the dear wife happy and everyone's happy! :lol:

Panik Enthusiast

Panik

Posted
Posted

First though I need to find a used Travel Trailer that fits the wife's needs and our budget! Proving difficult - but keep the dear wife happy and everyone's happy! :lol:

 

LOL, completely understand. We just traded my wife's minivan for a tricked out 2000 Land Rover Discovery with pretty much all the off roading options because it was her dream vehicle. A little weird to realize that I'm driving the tow rig and she's got the off-road beast.

 

Anyways, I've been pretty happy with the location of the P3, just took a little while to get used to the light from the display right next to the mirror. However, with all the other lighting in these trucks its not that much of an adjustment

Zasker1 Enthusiast

Zasker1

Posted
Posted

install my ps3 modded on Amazon the one thing to take note of is that the GMC Sierra specific wiring harness that they sell that is simply plug and play his very very short in fact the only place you'll be able to mount the controler if you buy the Jim harness on Amazon is underneath the dash on the left hand side against the door

Panik Enthusiast

Panik

Posted
Posted

Odd, the plug and play harness that I purchased had tons, as in ridiculous amounts, of extra length. As in I had to loop the extra several times and zip tie it up under the dash.

Hutch65 Enthusiast

Hutch65

Posted
Posted

Check youtube with a very specifiv search. When I mounted mine they had an install video that showed me exactly where to find 2 factory installed wires (one under the dash and one under the hood) both hard to locate otherwise. As mentioned, you may or may not have the square 40 amp fuse installed in the block from the factory. The instructions even showed me which dash-brace screw to use to mount the controller. Mine is under dash by my right knee and at 6', I'm all legs and have never bumped it. Check the E-Trailer website, they usually have great installation videos for trailering products.

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