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  1. #1

    Default 03 silverado W/BOSE WIRING DIAGRAM PLEASE

    After 12+ hours of guessing and trying to wire my new alpine headunit in ive so far given up on going it alone
    ive found countless diagrams for NON BOSE systems but not one yet for mine
    anyone have a wiring diagram for a 2003 BOSE SILVERADO ???? please help a brother out

  2. #2
    Master Mechanic TritonBoulder47's Avatar
    Join Date
    Nov 2009
    Tunkhannock, PA (North East)


    I had the BOSE in my '03 Av... I'm fairly certail that they are the same... Here's the diagram I used... It will be on that page... I used that when I got the METRA GMOS-04 Adapter and it **** the bed 8 hours after I installed it... So I used the factory side of the adpter and direct wired it to my new head unit. All I had to do was run an ignition power wire from the fuse box and everything worked perfectly... But in doing this you lose all warning chimes, and the delayed shut-off...

    Hope this helps...

    Tim a.k.a. Da' Boulder

    2003 Chevrolet Avalanche Z71 - Custom Emergency Response POV

    Firefighter, Fire Policeman, Ambulance Driver, Rescue Tech, Emergency Lighting Installer

    Tint, 20's, Bull Bar, Intake, Exhaust, Billet Grill, Stereo, Custom Console, Emergency Equipment, and the list goes on...

  3. #3


    Thanks alot for the reply, but
    my harness doesnt have light blue, yellow, or a few others
    i have a bunch of blacks whites oranges all mixed with stripes

  4. #4


    i would recomend just getting the bose interface.

    Cody- Tulsa, OK
    '04 silverado

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