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Metra GMRC-04 Wiring Interface

Connect a new car stereo and retain the door chimes and audible safety warnings in select 2000-up GM vehicles

Save with a compatible car stereo with a compatible car stereo
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  • Metra GMRC-04 Wiring Interface

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  • Metra GMRC-04 Wiring Interface

  • Metra GMRC-04 Wiring Interface

  • Metra GMRC-04 Wiring Interface

 

Our take on the Metra GMRC-04 Wiring Interface

by Zak Billmeier

Problem: Installing an aftermarket receiver in some 2000-up General Motors vehicles means losing audible safety warnings.

Solution: Metra's GMRC-04 GM data bus interface lets you replace the factory receiver in these vehicles while keeping the door chime and audible safety warnings. Hook the GMRC-04 to your aftermarket radio, mount the module, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact.

Also, once you turn off the ignition in these GM vehicles, the radio continues to play until you open the door. This interface maintains that function with your new aftermarket radio. This interface is compatible with select 2000-up GM vehicles. If you haven't done so already, please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this item is compatible with your vehicle. Warranty: 1 year.

See more info on this item

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • GM Glass II Data Bus Interface (GMRC--04)
  • 10 Pin-to-32 Pin GM harness
  • Installation instructions

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Overview: The AXXESS GMRC-04 lets you replace the factory radio in select 2000-2005 GM vehicles. The AXXESS GMRC-04 is designed to be used in non-amplified 2000-2005 GM vehicles without Onstar that have the "Dock-n-Lock" style harness (the radio harness that stays mounted in the dash when the radio is removed). The GMRC-04 retains the warning chimes that will normally be lost when the GM factory radio is removed through the use of an on-board speaker. It will also provide a 12-volt switch accessory wire for proper radio operation

Note: The radio itself is held in by two spring loaded clips, one on each side.

Vehicle Compatibility: The AXXESS GMRC-04 is compatible with the following 2000-2005 GM vehicles (without Onstar), that use the "Dock-n-Lock style harness".

  • 2000-2005 Buick Lesabre
  • 2001-2003 Oldsmobile Aurora
  • 2000-2005 Pontiac Bonneville

Note: The GMRC-04 can be used in the vehicles listed above that come with a factory amplifier; however the factory amplifier must by bypassed. If the vehicle has Onstar, that feature will not work. Please consult the Crutchfield Car Selector to see if your vehicle is compatible.

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 GMRC-04 is designed to retain this feature.

 
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Metra GMRC-04 Wiring Interface Reviews

Average Customer Review:

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4 out of 5

For Buick

Written By JoelR, Otsego,MN on Friday, August 08, 2014
Crutchfield Customer Review (What's this?)
 
The wire harness was perfect, I personally don't know that the Chimes are really needed but they work.
Pros:
Simplified installation.
Cons:
The Chimes are very loud and I will have to take the dash apart again to turn it down.
Was this review helpful?    Yes | No
 
5 out of 5

Wrong Adaptor

Written By Luvmychi3, Wisconsin on Tuesday, February 04, 2014
 
I entered that I had the 2000 Bonneville with 8 speaker option, suggested the GMRC-04 Factory integration adapter, this is only for the door chimes. I needed the GMOS-09 adapter for door chimes, amp, ect, which they do not carry. I ended up ordering the wrong item and had to order the correct option else where.
Pros:
Great if you only need to keep the door chimes.
Cons:
Only for door chimes
Was this review helpful?    Yes | No
 
3 out of 5

GM Factory Integration Adapter

Written By PaPa AL, Woodbury, TN on Friday, July 27, 2012
Crutchfield Customer Review (What's this?)
 
Doesn't work perfect. Sometimes, it does not shut off radio with key off after opening door. Never shuts it off if you have door open before shutting engine & removing key.
Pros:
Retains chimes.
Cons:
Not perfect.
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1 question already asked

steering wheel control retained? [ Robert  Aug 27, 2014 ]
1 answer
  • The ability to retain steering wheel controls 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. [ Krissy Staff  Aug 27, 2014 ]

For a more in-depth review and enhanced detailed information on the Metra GMRC-04 Wiring Interface, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_120GMRC04/Metra-GMRC-04-Wiring-Interface.html ).

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