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  1. #1

    Default Sierra Interior Gadget Question

    Hi guys,

    I have always wondered what this little gadget attached to my GMC Sierra's interior upper console was. I have seen other GM trucks with it in photos, but no detail about it's reason for being.

    Any ideas?



    Click image for larger version. 

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  2. #2
    Jr. Mechanic GOTSAND4ME2's Avatar
    Join Date
    Apr 2009
    Ukiah, California


    Can't really tell from the small pic but it looks like a speaker pick up for use with cellular phones, I have a similar unit in my rig for the new hands free driving law that came out ugh!

    2000 Chevy Silverado 1500
    6" RCD Lift
    315/75/R16 BFG All Terrains
    Alpine 7" DVD Reciever
    Jbl Componet Door Speakers Front and Rear
    4 10" Jbl Subs
    Led (Blue) Cluster Gauge Blulb Swap
    Dell Studio Hybrid Digital Media Server
    Cobra CB
    Twin Bearcat Scanners

  3. #3
    Legend tlperry68's Avatar
    Join Date
    Oct 2008
    Huntington Beach, CA


    Speaker or air freshner are my guesses. It looks aftemarket, it doesn't match the rest of the colors.
    Trevor - Huntington Beach, CA
    2007 GMC 2500 4X4

  4. #4


    Its the mic for onstar.
    2005 Sierra 1500 Z71 Crew Cab
    Pro Comp 6" Lift
    4.56 Gears
    35" Toyo M/T's on 20" Eagle Alloys
    K&N Intake
    Flowmaster Exhaust
    SuperChips Programmer (worthless)

  5. #5


    Thanks everyone. I just knew that if anyone had the answer, it would be you guys and this GREAT website. I'm glad to be a part of this site.

    Thanks again,


  6. #6
    Sr. Engineer nickgiacalone's Avatar
    Join Date
    Mar 2009
    Metro Detroit, MI


    it is the mic for OnStar and it is stock. it is not aftermarket even tho GM was too cheap to color match it
    2013 Silverado 1500 4x4 LT, Z71 Appearance Package, Vortec 5.3L AFM
    Victory Red, Ebony Cloth
    Custom pin striping, Bed Rail Protectors, GM Bed Liner, Husky Liner Floor Liners, Tint, Wade In-Channel Window Visors, Tractor Supply Black Low Profile Toolbox

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