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. We also carry the harness for factory systems with BOSE AND OnStar. The item is Scosche DCGMOS2B11B

Compatibility List:

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

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

Rating Distribution

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Average Attribution Rating

Browse 13 questions and 30 answers
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Why did you choose this?
Sonic Electronix Store
I need it
Marc L on Oct 16, 2015
product didn't even work
Carson D on Oct 23, 2014
needed for install
George H on Nov 23, 2014
said I need it I hope it was telling the truth.
David W on Sep 23, 2014
does this work with a 2003 chevy venture?
A shopper on Dec 14, 2014
Best Answer: According to the provided literature that came with the product , yes , it will work and is extremely easy to install.
Reply · Report · michael w on Dec 24, 2014
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Using this harness with a PLDNV695. Everything seems fine except the radio loses settings and clock goes to 12:00 when I turn off ignition. Have to reset the stations each restart. Red Power to yellow B+...The two black ground wires are connected to the black wire from the harness. Is the small relay necessary??
Thomas J K on Mar 16, 2015
Best Answer: Red does not go to yellow, that is why you are losing memory. yellow goes to yellow, red goes to red. yellow is constant power, red switches on and off with the key. The relay is to protect the module from passing too much power thru it so I would recommend installing it.
Reply · Report · jonas z on Jan 18, 2016
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will my steering wheel controls work the stereo with this harness?
A shopper on Oct 18, 2014
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There is a dark blue wire that is suppose to be used that does match up with any color on my stereo wiring? Could Dark blue go with the Blue/white car stereo wire? The Orange, Red, Yellow, and black all match up.
Luke J on Aug 1, 2014
Best Answer: Yeah, Luke, the dark blue wire is a trigger for the car's antenna amplifier (if it has one) - go ahead and connect it to your aftermarket blue-white. If there is not antenna amplifier in the car, it will do no harm.
Reply · Report · nc-stereoman on Aug 1, 2014
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Used this device with Pyle PLDNV695 head unit. I wired per instructions. My battery has drained several times...Is there anything in the radio or the chime unit which remains on even though the ignition is off?
Thomas J K on Feb 28, 2015
Best Answer: Yes, one of the wires is always hot, otherwise you would lose your radios memory any time you turned off the ignition.
Reply · Report · Steve H on Feb 28, 2015
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Does it work for 2007 gmc Sierra?
A shopper on Sep 6, 2014
Best Answer: Hello,

ONLY the '07 GMC Sierra CLASSIC will accept the GM09SR. Without Onstar & New Body will require the GM22SR.

Reply · Report · Customer SStaff on Sep 7, 2014
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I received this harness and soldered all my connections and the only way the new head unit will work is to unplug the whole thing and wait a few min then plug it back in. and when it is working it sounds like a whisper when the volume is at 50 any ideas?
Justin R on Apr 22, 2016
Best Answer: The rca outputs on this feed straight into the speaker wire and I got almost no audible output. What you have to do is cut the rca plugs and solder the speaker wire to the correct corresponding wire to the headunit.
Reply · Report · Justin G on Apr 23, 2016
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Will this work for a 2003 chevy 2500hd with bose and no onstar?
A shopper on Mar 18, 2015
Best Answer: No will not connect to onstar you need to purchase a onstar module usually comes with rear view mirror.
Reply · Report · Russ H on Mar 19, 2015
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will this work in a 03 tahoe without on star but with bose?
A shopper on Sep 28, 2014
Best Answer: Hello,

Yes. This is the harness you seek.

Reply · Report · Customer SStaff on Sep 29, 2014
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I have buy a kenwood ddx672bh from sonic for my chevrolet van 2003 eleven month ago and you send me a gm09sr stereo replacement interface with chime. I fallow the instruction to connect it, but it dont work. After a few minute it shut off and start again all the time what dont work whit that ?
Marc L on Sep 11, 2016
Best Answer: Hello,

These threads are meant for product questions, and are submitted to customers that have the product. Obviously those customers cannot answer questions related to orders; So please submit your inquiry to [email protected] or call our Sales Team at 1-877-289-7664 opt 1 .
Reply · Report · Rick MStaff on Sep 12, 2016
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will this harness work for a after market double din system on a 04 lexus es330?
showtime on Apr 26, 2016
Best Answer: Hello Reggie,

As specified on the page itself, the Scosche GM09SR is a GM Harness , not Toyota/Lexus. Moreover, the vehicle you specified is not included in the compatibility list provided.

Use the website's vehicle fit guide or call our Sales Team to find the product you seek. We suggest the Axxess BX-TY1, but there may be other features you seek.
Reply · Report · Rick MStaff on Apr 26, 2016
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Does this work for a 2007 colorado?
A shopper on Dec 25, 2014
Best Answer: Hello,

Yes, this harness is compatible with that vehicle.

Reply · Report · Customer SStaff on Dec 27, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


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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