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Metra LC-GMRC-01 Wiring Interface

Connect a new car stereo and retain factory door chimes and audible safety warnings in select GM vehicles without factory amp (does not retain OnStar)

Item # 120LCGMRC1

Problem: Installing an aftermarket receiver in many late model GM vehicles means losing the chime that warns the...

Find what Fits your car

Problem: Installing an aftermarket receiver in many late model GM vehicles means losing the chime that warns the...

Item # 120LCGMRC1

In stock
C$59.99

About the Metra LC-GMRC-01 Wiring Interface

Problem: Installing an aftermarket receiver in many late model GM vehicles means losing the chime that warns the door is open, along with audible safety warnings.

Problem: Installing an aftermarket receiver in many late model GM vehicles means losing the chime that warns the door is open, along with audible safety warnings.

Solution: Metra's LC-GMRC-01 GM Class II Data Bus Interface lets you replace the factory receiver in these vehicles and keep the door chime and all audible safety warnings. It also keeps your vehicle's Retained Accessory Power (RAP) feature working.

Wire up the LC-GMRC-01 to your aftermarket radio, mount the module in a location where the chime can be heard, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact. The LC-GMRC-01 does not retain OnStar and it's designed for non-amplified factory systems or systems in which the factory amp has been bypassed. Warranty: 1 year.

Important Note: This LC-GMRC-01 interface allows you to keep your factory door chime (needed to keep audible safety warnings functioning) while providing a switched 12-volt power source for your new radio. If you do not use a compatible interface when you replace your factory radio, you will disable the audible warning system in your vehicle. Crutchfield cannot provide a free wiring harness for your vehicle, and we strongly recommend that you use this interface when replacing this vehicle's factory radio. Failure to do so may result in serious injury or death.

READ LESS

What's in the box:

  • GM Class II Data Bus Interface
  • Vehicle/Radio harness
  • Installation Instructions
MFR #LC-GMRC-01

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Metra LC-GMRC-01 Wiring Interface reviews

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More details on the Metra LC-GMRC-01 Wiring Interface

Stacey B.
The Metra LC-GMRC-01 Wiring Interface replaces these items:

Product Research

Features

Vehicle Compatibility: The Axxess LC-GMRC-01 is designed for use in select 2000-2011 GM vehicles with non-amplified factory systems (or when replacing the entire factory sound system, including factory amplifiers) and without OnStar.

Make Model Year
Buick Allure 2005-2009
Century 2004-2005
Lacrosse 2005-2009
Rainier 2004-2007
Rendezvous 2002-2007
Terraza 2005-2008
Cadillac Escalade/Escalade Ext 2003-2006
Chevrolet Avalanche 2003-2006
Cavalier 2000-2005
Colorado 2004-2009
Corvette 2005-2011
Express Van (full-size) 2003-2007
Impala 2000-2005
Malibu 2001-2005
Malibu Classic 2004-2005
Monte Carlo 2000-2005
Silverado 2003-2006
Silverado Classic 2007
SSR 2003-2006
Suburban 2003-2006
Tahoe 2003-2006
Trailblazer 2002-2009
Uplander 2005-2008
Venture 2000-2005
GMC Canyon 2004-2010
Envoy 2002-2009
Savanna Full-Size Van 2003-2007
Sierra (Classic) 2003-2007
Yukon/Yukon XL/Deanli 2003-2006
Hummer H2 2003-2007
H3 2006-2009
Isuzu I290 2007-2008
I280 2006
I370 2007-2008
I350 2006
Oldsmobile Alero 2001-2004
Bravada 2002-2004
Intrigue 2002
Silhouette 2000-2004
Pontiac Aztec 2001-2005
Grand Am 2001-2005
Grand Prix 2004-2008
Montana 2000-2005
Sunfire 2000-2005
SAAB 9-7x 2005-2009
Saturn Relay 2005-2007

Retained Features: The LC-GMRC-01 provides +12-volt accessory output, retains warning chimes, and retains R.A.P. (retained accessory power).

  • +12V Accessory Output: In many GM vehicles, there is no 12-volt accessory wire in the factory harness, which requires the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. The LC-GMRC-01 is designed to provide a 12V/3A switched accessory output (red wire).
  • Warning Chimes: The LC-GMRC-01 retains factory warning chimes through the use of an on-board speaker.
  • Retained Accessory Power (R.A.P.):  The ignition power source of most GM vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The LC-GMRC-01 is designed to retain this feature.

10-Pin to 24-Pin Harness: The wiring harness has a white 10-pin female connector (4 pins present) on one end and a gray 24-pin male connector (14 pins present) on the other end. The 10-pin connector plugs into the LC-GMRC-01 and the 24-pin connector interfaces with the existing factory plug. The harness also includes 14 bare wires that will need to be hardwired to your new aftermarket radio's harness.

Wire Color Function
Red +12V Accessory
Yellow +12V Constant
Black Ground
Orange Illumination
Orange/white Not Used
Blue/white Amp turn-On
White Left Front Speaker +
White/black Left Front Speaker -
Gray Right Front Speaker +
Gray/black Right Front Speaker -
Green Left Rear Speaker +
Green/black Left Rear Speaker -
Purple Right Rear Speaker +
Purple/black Right Rear Speaker -
Blue/pink Vehicle Speed Sense
Green/purple Reverse Gear
Light Green Parking Brake

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Customer Q&A

20 questions already asked

Q
Will this interface power my stereo with the key in the on position ?
[ Juan  Mar 30, 2020 ]
2 answers
A
This will depend largely on your vehicle. For details on installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on what you will need for an installation.
[ Krissy  Apr 14, 2020 ]  Staff
A
I installed in my GM and it works like the factory radio. I even have the chimes now.
[ Anthony  Mar 31, 2020 ]
Q
Sill this fix my no sound issue? I have no sound through the speakers
[ Kyle  Mar 21, 2020 ]
1 answer
A
I replaced my speakers and problem solved. I was replacing an older unit with the original speakers from a 2007 Silverado classic.
[ JESUS  Mar 22, 2020 ]
Q
what is the light green wire used for on the metra lc -gmrc-01 ?
[ Harvey  Apr 26, 2019 ]
1 answer
A
I have no clue, I installed this over two years ago, how about looking at the schematic, that is what i would do Be smart not lazy solve the puzzle, if you have brain you can figure it out! All these installs assume you are a Professional, put on your thinking cap ! Best to you!
[ FRANK P  Apr 27, 2019 ]
Q
what dose the light green wire do ?
[ Harvey  Mar 09, 2019 ]
2 answers
A
Left rear + speaker wire
[ Daryl  Mar 15, 2019 ]
A
Pale green. Parking brake connection Blue pink speed sensing Green purple backup camera
[ James  Mar 13, 2019 ]
Q
I have a 2007 chevy 3500 classic but its is all basic the stock radio i have doesnt even have a cassette player what harness would i need to put a aftermarket radio in? The truck doesnt have onstar or anything.
[ ThomasB  Dec 05, 2018 ]
1 answer
A
This Metra harness works in a pickup like yours to install any receiver into it! An antenna adapter is needed and so is a mounting kit to complete the install. I recommend contacting an advisor on 1-800-324-9695 to make sure you are getting all the parts needed to install your new radio. My Bio: https://www.crutchfield.com/bio/Paul
[ Paul  Dec 12, 2018 ]  Staff
Q
wHAT IS THE SMALL PLUG ON THE OPPOSITE SIDE FOR LOOKS LIKE A PHONE CHARGER INPUT?
[ MIKEM  Jul 05, 2018 ]
1 answer
A
As far as I remember it is not a phone charger. One side connects to the car wires and the other the the stereo.
[ Anne marie  Jul 10, 2018 ]
Q
What gauge wire?
[ Aaron  Apr 03, 2018 ]
1 answer
A
The specific gauge of the wires in the harness is not provided by the manufacturer. We recommend using connectors for 18-20 gauge wire. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
[ Ryan  Apr 13, 2018 ]  Staff
Q
What is the mirco usb for?
[ Richard  Feb 09, 2018 ]
2 answers
A
The micro USB port is used for firmware updates.
[ Craig  Feb 11, 2018 ]
A
I don't recall any micro USB on the harness, it was a very simple plug and played, making it so you still get door chimes and alerts with an aftermarket stereo.
[ MATTHEW  Feb 09, 2018 ]
Q
Would I need this Metra LC-GMRC-01 Wiring Interface to add a back up camera to a jvc v40bt?The jvc is already installed but the back up camera doesn't work?
[ Jose  Jan 21, 2018 ]
1 answer
A
There is no special harness required to add a back-up camera to the JVC KW-V40BT stereo. It features a standard composite video (RCA) input that works with most any aftermarket rear-view camera. If you are referring to an original factory back-up camera that came installed in your vehicle, no, this harness does not provide the ability to retain it with an aftermarket stereo. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
[ Ryan  Jan 26, 2018 ]  Staff
Q
Is there a way to tie in a steering control interface to the data bus interface?
[ Dan  Sep 15, 2017 ]
1 answer
A
This will depend largely on your vehicle. For details on installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on what you will need for an installation.
[ Kenny  Sep 15, 2017 ]  Staff
Q
This there an adapter to connect my factory gm XM to an aftermarket unit?
[ Robert  Jul 11, 2017 ]
1 answer
A
The ability to retain factory functions with aftermarket receivers will be determined by the receiver you are using and the vehicle you have. For full information on this type of integration (including the parts you will need) please contact an Advisor by phone (1-800-324-9695) or online chat.
[ Kenny  Jul 11, 2017 ]  Staff
Q
do i REALLY need this for the stereo to work?
[ patrick  Mar 06, 2017 ]
1 answer
A
This will depend largely on your vehicle. For details on installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on what you will need for an installation.
[ Kenny  Mar 06, 2017 ]  Staff
Q
I recently purchased a Kenwood Stero for my Chevrolet Silverado LS Etended Cab. The interface connection doesn't fit. Crus-17 SOCGM-17. THIS ONE HAS 2 ROWS OF PINS AND THE ONE IN MY TRUCK HAS 4 ROWS?
[ Michael  Dec 01, 2016 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
[ Krissy  Dec 02, 2016 ]  Staff
Q
Does this allow me to keep the Bose system?
[ Devon  Oct 28, 2016 ]
3 answers
A
yes you can keep the Bose system it works great.
[ TRACY  Nov 03, 2016 ]
A
I did not have the boss system. The upgraded boss system uses small amplifiers under the cockpit seats to power the speakers. Most amplifiers use a low water input but not sure about factory system amps. IT is likely that the factory amps are low enough ways to handle direct speaker out input. If it was my system I would try it. This will keep the warning chimes and steering wheel controls. I cannot find any other interface that specifically works with the boss system so I think this is it.
[ Dusty  Oct 29, 2016 ]
A
Yes no problem . everything works well if you have a problem you call crutchfield and they walk you through it
[ Philip  Oct 28, 2016 ]
Q
Does this work if the car originally had a Monsoon stereo in it?
[ norman_3731  May 26, 2015 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  May 26, 2015 ]  Staff
Q
Is this item really necessary?
[ Chris  Aug 09, 2014 ]
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Aug 09, 2014 ]  Staff
Q
Will this work with my 04 2500hd silverado with the 8.1L with out steering wheel controls, without onstar, and I have the digital heat controls?
[ Zeb  Jun 20, 2014 ]
2 answers
A
Will this work if I already have an aftermarket amplifier installed? (I kept the original radio receiver, just upgraded speakers and installed an amp and sub)
[ Dave A M  Jul 27, 2014 ]
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Jun 20, 2014 ]  Staff
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