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2500HD w/plowprep

Discussion in 'Chevy Trucks' started by haysaver, Oct 2, 2011.

  1. haysaver

    haysaver Junior Member
    Messages: 17

    Wondering the best way to find the pre wired harness for a warning light. Can I find it through the cab brake light or just have to take the B post apart?
  2. Raconteur

    Raconteur Senior Member
    from MA
    Messages: 138


    HDPOWER Junior Member
    Messages: 14

    On my 2011 it was under the map light overhead console. I then fished it through to the third brake light.
  4. MikeRi24

    MikeRi24 Senior Member
    Messages: 563

    its up in the headliner. they give you a ton of extra wire. You should just be able to pull the A-pillar cover off and pull the headliner down just enough to reach in there with a straightened out coat hanger and pull it over to you. Next, remove the 3rd brake light, run a piece of mechanics wire through to pop out on the drivers side, tape your wire to it and pull it out the 3rd brake light. Splice your wires in (green is power brown is ground I think), and thread it back though so your connections are inside.
  5. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,288

    In my 2006 it was up in the headliner by the b pillar above the rear window