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Plow prep wire

Discussion in 'Chevy Trucks' started by badranman, Apr 1, 2005.

  1. badranman

    badranman Senior Member
    Messages: 265

    I just got my 2005 GMC 2500hd today. The instructions say to drill a hole in the roof to get the wires for the beacon light. I thought you could get these through the third brake light. Anybody know?
     
  2. wfd44

    wfd44 Senior Member
    from Maine
    Messages: 369

    Run a search. It has been discussed ad nauseum.
     
  3. badranman

    badranman Senior Member
    Messages: 265

    I did a search before I posted this but couldn't find much. I just did a few more different ones and I guess you can fish it out the brake light, you just have to drill a hole in the lens. Does this sound right?
     
    Last edited: Apr 1, 2005
  4. sonjaab

    sonjaab PlowSite.com Addict
    Messages: 1,425

    BAD...........The wires your looking for are a heavy brown+ and a heavy black-.

    They are deadheaded in the ceiling. They run from the bottom to the top on the left side rear pillar. There is a relay located in the pillar near the seatbelt anchor.

    You can fish them out of the headliner or remove the 3rd eye brakelight and fish and lead them out that way. I use a male/female 2 wire plug to hook into my magnetic mount beacon. You just need to notch the 3rd eye light gasket to leave the wires out.

    Check out http://www.gmupfitter.com pg.27 for full info.
     
  5. NEXTDAYSIGNS

    NEXTDAYSIGNS Member
    Messages: 92

    I found the easiest way is to take the center interior light out and the overhead console. This will let you shine a flashlight up and look in the other hole. The wires will be wrapped in black electric tape. If you go out the third brake light you will most likely have to drill a hole in the metal brace. Just go slow hope this helps. Also try searching using aux lights.
     
  6. badranman

    badranman Senior Member
    Messages: 265

    Thanks sonjaab. That makes it easier for me.
     
  7. Silver Bullet

    Silver Bullet Junior Member
    from Iowa
    Messages: 7

    I think they should do something different with that. Not many people I know want to take a drill and start drilling a hole in the roof of a new truck. I would rather have in the bed of the truck.
     
  8. sonjaab

    sonjaab PlowSite.com Addict
    Messages: 1,425

    Another method I have used on my ex-cabs is to remove
    the center top latch striker and pull the headliner down
    GENTLY and fish the wires out the side.

    Then put a male/female plug on the wires and beacon
    and lead the wires out the 3rd door and plug into
    beacon when needed.

    I just tuck the truckside plug up into the edge of the
    headliner when not needed.............

    Forget drilling holes in that new rig................:drinkup:
     
  9. vipereng2

    vipereng2 Senior Member
    Messages: 380


    no way no holes :dizzy: :nono: :eek: :

    sweet2.JPG
     
    Last edited: Apr 3, 2005
  10. ratlover

    ratlover PlowSite.com Addict
    from IL
    Messages: 1,325

    You can also fish the wire down and fish it out the little grate/vent deal between the cab and the bed.
     
  11. vipereng2

    vipereng2 Senior Member
    Messages: 380

    thats what iam going to do

    :gunsfiring:
    yup
     
  12. badranman

    badranman Senior Member
    Messages: 265

    I have the regular cab? How do the clothes hooks on top of the back window come off? I don't want to pry too hard and break them off. If I were to fish them down would they come easy or will it be a fight?
     
  13. JRKRACE

    JRKRACE Senior Member
    Messages: 172

    I tried "fishing" for the wire myself. No patience. I just unsnapped the trim piece between the two doors and found the wires there along with the relay. Tapped the wires there and ran them to wherever I wanted. In and out in about 15 minutes. :D
     
  14. sonjaab

    sonjaab PlowSite.com Addict
    Messages: 1,425

    BAD.............Just snap off the left rear corner plastic cover over
    the "B" pillar like JRK did and pull the wires down from inside the
    roof after the relay.

    Are you pulling down the headliner ?..............geo
     
  15. badranman

    badranman Senior Member
    Messages: 265

    I tried, but I didn't want to bust the clothes hooks. I know how easy it is to break the tabs on the trim pieces if you're not careful. That's why I wanted some info before I go too nuts and make a mistake. I'd prefer to fish them out the third brake light. I think I have to take the headliner down, at least in back, to do this, no? If I can't do that I'll fish it down and out the vent. Thanks.
     
  16. sonjaab

    sonjaab PlowSite.com Addict
    Messages: 1,425

    BAD..............Do you want to run the wires out the 3rd eye brake
    light? If so take off the 3rd eye from the outside and fish it out
    from there.

    You will be looking for a brown+ and black wire(s)-
     
  17. badranman

    badranman Senior Member
    Messages: 265

    I tried that. All I saw wre a couple of small holes to either side with hard foam in them. I didn't know if I should cut the foam or it would be easier to drop the liner and push them out that way.
     
  18. sonjaab

    sonjaab PlowSite.com Addict
    Messages: 1,425

    BAD.....Is the coat hook mounted on the B=pillar ? (Can't remember)
    If not do what JRK did and unclip the plastic piece (near the top).
    Then fish a wire from the 3rd eye to the relay on the B-pillar or
    the other way around. Whichever is easier.......NOT!

    I KNOW that foam in the roof is a PIA to work around !

    I have done a few...................geo :drinkup:
     
  19. badranman

    badranman Senior Member
    Messages: 265

    The coat hooks are mounted above the rear window, this is a regular cab. I'm going to try and fish it through to the 3rd brake light this weekend.
     
  20. sonjaab

    sonjaab PlowSite.com Addict
    Messages: 1,425

    BAD.............Just unclip the left rear B-piller plastic .....
    CAREFULLY.......... It pops off side to side and should have no
    screws just...............Cheap plastic s**t clips!
    Start on 1 side of the tirm piece up close to the roof cuz thats
    where the wires run. They are also PAST the relay....... Brown and
    Black wires....1 each !

    The wires will deadend in the headliner LOOSE too ! But they
    ARE taped together tho !

    Take off your 3rd eye brake light and run a fish down to where
    the wires are and pull them back up thru the 3rd eye hole for
    your plug plug for your beacon light...........

    JRK..........Any more hints.............??????
     
    Last edited: Apr 26, 2005