Select 1999-2005 General Motors Vehicle Radio Replacement Interface with Integrated Chime

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Select 1999-2005 General Motors Vehicle Radio Replacement Interface with Integrated Chime. This harness keeps GM SAFETY and WARNING CHIMES functioning in your vehicle. Issues "Healthy" (OK) System Status to Vehicle's Computer. Includes RCA low-level through-pass connections for superior sound quality and signal. Also provides +12V Switched Power Source for Aftermarket Stereo. Detailed instructions are included and toll-free technical support is available. The Scosche GM09SR is compatible with the following GM Vehicles that are WITH/WITHOUT Bose and NON Onstar.

Item Condition: Open Box Complete

  • Package has been opened
    • Compatibility List:

      • Select 1999-2005 GM Chime Retainer Integration Harness for vehicles with Factory Bose systems and No OnStar
      • Buick:
        • 2004 - 2005 Century
        • 2004 - 2006 Rainier
        • 2005 Terraza
      • Cadillac:
        • 2003 - 2005 Escalade / ESV / EXT
      • Chevrolet:
        • 2003 - 2006 Avalanche
        • 2000 - 2005 Cavalier
        • 2004 - 2007 Colorado
        • 2003 - 2007 Express
        • 2000 - 2005 Impala
        • 2001 - 2003 Malibu
        • 2000 - 2005 Monte Carlo
        • 2003 S-10 Blazer
        • 2003 - 2006 S-10 Pickup
        • 2003 - 2006 Silverado Pickup 1500, 2500HD, 3500HD
        • 2003 - 2006 Surburban
        • 2003 - 2006 Tahoe
        • 2002 - 2005 Trailblazer
        • 2005 Uplander
        • 2000 - 2001 Venture
      • GMC:
        • 2004 - 2007 Canyon
        • 2002 - 2005 Envoy
        • 2003 - 2007 Savana
        • 2003 - 2004 Sonoma
        • 2003 - 2006 Sierra 1500, 2500HD, 3500HD
        • 2007 Sierra Pickup CLASSIC
      • Hummer:
        • 2003 - 2005 H2
      • Oldsmobile:
        • 2001 - 2003 Alero
        • 2002 - 2004 Bravada
        • 2000 - 2001 Silhouette (w/ Integrated Chime)
        • 2002 - 2005 Silhouette
      • Pontiac:
        • 2001 - 2005 Aztek
        • 2001-2005 Grand Am
        • 2000 - 2001 Montana (w/ Integrated Chime)
        • 2002 - 2005 Montana
        • 2005 Montana SV6
        • 2000 - 2005 Sunfire
      • Saturn:
        • 2005 Relay

    Product History:

    Scosche LS-GM09SR-OBC thumbnail
    (newest, current model)
    Scosche DCGM09B thumbnail
    (previous model, replaced by Scosche GM09SR OPEN BOX COMPLETE)

    Harness Features

    Vehicle Sound System
    This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
    Premium Sound
    Main Harness Function
    Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
    Connect/Install an Aftermarket Car Stereo
    Additional Harness Features
    The various features that the wiring harness provides to your car stereo and/or audio system.
    Chime Retention
    Compatible Vehicle Make
    Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
    Compatible Vehicle Make and Model
    The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
    Buick Rainier
    Buick Terraza
    Cadillac Escalade
    Chevy Avalanche
    Chevy Blazer
    Chevy Cavalier
    Chevy Colorado
    Chevy Malibu
    Chevy Monte Carlo
    Chevy S-10
    Chevy Silverado
    Chevy Suburban
    Chevy Tahoe
    Chevy Trailblazer
    Chevy Uplander
    Chevy Venture
    GMC Canyon
    GMC Envoy
    GMC Sierra
    GMC Sonoma
    Hummer H2
    Oldsmobile Bravada
    Oldsmobile Silhouette
    Pontiac Grand Am
    Pontiac Montana
    Pontiac Sunfire
    Saturn Relay

    Premium Harness Features

    Compatible Premium Audio Systems
    Some vehicles have higher end audio systems installed in them by the manufacturer. This specifies which premium audio systems this item is compatible with.
    Standard Bose
    On-Star Compatible
    This means that the harness is compatible with vehicles that have On-Star built-in.
    CAN-BUS Compatible
    CANBUS Ballasts ensure compatibility with ALL vehicle makes and models without the need for additional accessories. In addition, they have built-in Anti-Flickering Capacitors to help prevent lighting issues caused by voltage spikes and drops by stabilizing the power.
    Compatible with Aftermarket Navigation Systems
    This means that the item is made to work with aftermarket systems with navigation. Typically, this means that the harness has wires that are used with GPS navigation systems, such as VSS wires and others. Please read the product description for full details of this feature.
    Chime Retention
    This means that the harness is able to retain the vehicles chimes.

    Warranty and Return Policy

    Parts Warranty Duration
    1 year
    Labor Warranty Duration
    1 year
    Warranty Provider

    Summary of Customer Ratings & Reviews

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    Product Summary


    Model Number




    Internal SKU


    Internal Product ID


    Sonic Electronix Wiring Guide

    Wiring Diagram Legend

    Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

    Product Name: Scosche GM09SR OPEN BOX COMPLETE