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  1. #1

    Default Trailer Brake Controller???

    Hello everyone,

    I have a 2004 Siverado 2500HD and I need help with my brake controller. I bought a Prodigy brake controller with the wire harness that just plugs in.

    Where do I look for the brake wire harness to plug in to?

    Thanks for any info.
    Friends Don't Let Friends Drive FORDs

  2. #2


    There is a black fuse box to the left of your brake pedal should be marked on the inside lid (which one to plug into). You also should have a fuse that goes into the fuse box under the hood on the drivers side for a brake controller. I got the same brake controller the thing is awesome. Good luck.

    06 Silverado 4x4
    Westin bars
    GM hood guard
    Extang tonneau cover
    Catback exhaust
    3.5in SS tips
    K&N Cold air intake

    05 Colorado Z71

  3. #3


    Thanks for the reply. I wiil take a look at it later.

  4. #4

    dwill3015's Avatar
    Join Date
    Jan 2007
    Yacolt, Washington
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    Welcome to the site!
    Washington State
    2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
    Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.

  5. #5


    Great controller they are. I have one Prodigy in my work truck and one in my old Seirra. No complaints, Rock solid


    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

  6. #6
    Legend tlperry68's Avatar
    Join Date
    Oct 2008
    Huntington Beach, CA


    Now you guys really make me want to swap my husky for the new prodigy. My wife says thanks!
    Trevor - Huntington Beach, CA
    2007 GMC 2500 4X4

  7. #7


    Just did that very thing on my 2004 1/2 ton. It's a job getting the lid off the box. Seems like there is 3 different style latches on it.You just need 3 arms is all. Got it plugged in and hooked up my control. The lights all lit up so I'm not going to worry to much.
    Took the unit out of my Trailblazer as it doesn't have much towing power.
    I think you plug into the second hole from the left. It does show you on the lid.
    Take Care

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