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GM/ LAN Stereo Replacement Interface Module for Select 2004 - 2008 11-Bit GM Vehicles

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List price $99.00

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with warranty

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Arrives by Monday, Jan. 30 to zip 20147

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This is an Open Box Item

We have checked, tested, and confirmed this item to function properly. It contains all the same parts as a new unit, but shows some visible signs of use.
This open box product has a 30-day return policy and a 90-day warranty

Scosche Audio Store

Item Condition: Open Box Complete

  • Item has been installed, used, and has box damage
  • Product Features:

    • GM/ LAN Stereo replacement interface module
    • Made for select 2004 - 2008 GM vehicles
    • Stereo replacement module retains all factory safety and warning chimes
    • Includes both 24-pin connector and 16/14-pin connector set to cover all applications
    • Provides data-driven +12V accessory R.A.P output
    • For most vehicles, the GM13SR provides data-driven park brake, reverse light, AMP trigger for factory-amplified systems, vehicle speed sense (VSS) and auto illumination trigger outputs
    • Issues "Healthy" status report for OEM diagnostic scans
    • Authorized Internet Dealer
    • 1-year Manufacturer's warranty


    • Yellow – 12V Constant
    • Red – 12V Accessory
    • Black - Ground
    • Orange – Dash Light Dimmer/Illumination
    • Green – Left Rear Speaker (+)
    • Green with Black Stripe Left Rear Speaker (-)
    • White – Left Front Speaker (+)
    • White with Black Stripe – Left Front Speaker (-)
    • Purple – Right Rear Speaker (+)
    • Purple with Black Stripe – Right Rear Speaker (-)
    • Gray – Right Front Speaker (+)
    • Gray with Black Stripe – Right Front Speaker (-)
    Note: On 2004-2007 Chevrolet Malibu/MAXX and 2005-2008 Pontiac G6 the driver information and menu adjustments are lost.

    Harness Features

    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.
    Chevy Astro
    Chevy Avalanche
    Chevy Aveo
    Chevy Camaro
    Chevy Caprice
    Chevy Cavalier
    Chevy Cobalt
    Chevy Colorado
    Chevy Corsica
    Chevy Corvette
    Chevy Epica
    Chevy Impala
    Chevy Lumina
    Chevy Malibu
    Chevy S-10
    Chevy Silverado
    Chevy Tahoe
    Chevy Uplander
    Chevy Venture
    GMC Acadia
    GMC Canyon
    GMC Envoy
    GMC Full Size Truck
    GMC Jimmy
    GMC S-15
    GMC Safari
    GMC Savana
    GMC Sierra
    GMC Sonoma
    GMC Yukon
    Pontiac Aztek
    Pontiac Bonneville
    Pontiac Early Models
    Pontiac Firebird
    Pontiac G5
    Pontiac G6
    Pontiac Grand Am
    Pontiac Grand Prix
    Pontiac Montana
    Pontiac Sunfire
    Pontiac Torrent
    Pontiac Vibe

    Warranty and Return Policy

    Parts Warranty Duration
    90 days
    Labor Warranty Duration
    90 days
    Warranty Provider
    Sonic Electronix

    Summary of Customer Ratings & Reviews

    Rating Distribution

    5 Star
    4 Star
    3 Star
    2 Star
    1 Star

    Average Attribution Rating

    Browse 7 questions and 16 answers
    Hide answersShow all answers | Sort by
    Why did you choose this?
    Sonic Electronix Store
    Needed this to interface an aftermarket Pioneer deck to the car door chimes. Worked great!
    puresound on Nov 5, 2016
    Scosche is always a good choice when it comes to aftermarket radio unit installations
    Darren H on Dec 8, 2014
    Required to adapt to vehicle. However, this is a forced purchase if you want to upgrade your stereo.
    Ron B on Oct 10, 2015
    best price you can find anywhere!
    matthew m on Dec 1, 2014
    Do I have to use this on my 05 malibu or will the Metra 70-2103 work? My car does not have onstar or steering wheel controls, nothing fancy like that.
    Austin f on Feb 1, 2015
    Scosche GM13SR
    Scosche GM13SR
    Metra 70-2103
    Metra 70-2103
    Best Answer: The interface will do two things for you: it will retain your warning chimes and it will provide the proper input for the "Ignition" wire on the aftermarket radio. You can use the 70-2103 but you will have to find your own "ignition" source and you will have no one else to blame if you leave your headlights on and kill your battery.
    Reply · Report · nc-stereoman on Feb 28, 2015
    · Add Answer · I Have This Question Too (1)
    i ordered this a while ago for my 2007 chevy impala and it does not work has anyone else had this issue? i cant get power to the head unit
    Isaiah P on Jun 13, 2015
    Best Answer: I used this on my 2003 impala and it worked fine. Try checking all the wire connections maybe one came lose or was hooked up to the wrong wire. If that's all fine try putting a current tester on it to see if power is reaching the head unit.
    Reply · Report · William C on Jun 13, 2015
    · Add Answer · I Have This Question Too (0)
    can I use this on my 2011 Malibu I have no on star or no volume control on my steering wheel?
    kellz23zone on Jul 26, 2015
    Best Answer: Hello,

    Scosche is recommending the GMSR11:

    Technical Support: (800) 363 - 4490 ext. 3
    Reply · Report · Rick MStaff on Jul 26, 2015
    · Add Answer · I Have This Question Too (0)
    I need the correct interface for an aftermarket stereo for a 2007 Silverado classic 2500 HD ?
    Kerry D on Jul 15, 2015
    Best Answer: Hello Kerry,

    That vehicle has Many trim levels; we suggest contacting our sales team to accurately pinpoint the one needed for it. It can be anything from the to the or higher, depending on the OEM features. or call our Sales Team at 1-877-289-7664 opt 1 .
    Reply · Report · Rick MStaff on Jul 15, 2015
    · Add Answer · I Have This Question Too (0)
    will this work seeing my 08 g5 came with a stock sum and amp already or will this still keep my head unit from turning on?
    jordan o on Oct 29, 2014
    Best Answer: Hello Jordan,

    The Scosche GM13SR is meant to Retain the OEM amp, and is meant to also Turn ON your headunit.

    REF: Technical Support: (800) 363 - 4490 ext. 3
    Reply (1) · Report · Customer SStaff on Oct 29, 2014
    · Add Answer · I Have This Question Too (0)
    where is the amp trigger? I am installing into a 2007 chevy hhr with factory amp
    janet00 on Aug 14, 2014
    Best Answer: Blue/White wire on the harness GM13SR
    Reply · Report · Joseph C on Aug 14, 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 GM13SR (OPEN BOX COMPLETE)