GM Speaker Wiring Harnesses

For select 1994-05 General Motors-built vehicles

  • GM Speaker Wiring Harnesses


Item #: 12071041

Review Summary

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These harnesses allow you to plug your new speakers into the factory connectors present in your vehicle's speaker openings.

Note: Some aftermarket speakers have terminals that are wider than this harness's slide-on connectors. You may need to widen the harness's female slide-on connectors, or use the slide terminals that may be included with the speakers. If you need to connect your new speaker's connectors to the Crutchfield harness, soldering is best, and crimping is also very popular - see "Accessories."

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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

  • 2 Speaker harnesses
  • 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.


Crutchfield Speaker Harness: Crutchfield speaker harnesses prevent you from having to cut your vehicle's factory speaker plugs when replacing your factory speakers with aftermarket car speakers. The Crutchfield speaker harness features two female quick-slide connectors on one end to attach directly to your new aftermarket car speakers & a proprietary Molex connector on the other end that connects to your vehicle's factory speaker plug.

Quick-Slide Connectors: The Crutchfield speaker harness is equipped with a large (positive) & small (negative) female quick-slide terminal. These quick-slide terminals fit directly onto most aftermarket car stereo speaker terminals (slight crimping may be required). In rare cases that the quick-slide terminals do not fit your car speaker terminals, you will need to solder the Crutchfield speaker harness to your aftermarket speaker's terminals or replace the quick-slide connectors on the Crutchfield speaker harness with the correct size terminal.

Note: Installation tools, hardware, & accessories are not included & sold separately. Please see the Accessories tab for recommendations & availability.

Quick-Slide Terminal Measurements: The positive female quick-slide terminal measures 0.205" (inner width), while the negative female quick-slide terminal measures 0.115" (inner width).

Wire Code Chart: Two identical Crutchfield speaker harnesses are included.

Wire Color Function
White Positive
Black Negative

The Crutchfield Car Selector: Please visit the Crutchfield Car Selector for your specific type of vehicle.

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GM Speaker Wiring Harnesses Reviews

Average Customer Review:

13 people say:

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5 out of 5

Awesome thanks

Written By Jamison, Opp, Alabama on Saturday, April 12, 2014
Crutchfield Customer Review (What's this?)
Couldn't ask for more
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5 out of 5

Great product

Written By Deck, Bay city on Saturday, August 03, 2013
Crutchfield Customer Review (What's this?)
Very easy to use and it was "plug and play"
Easy install Great quality
Was this review helpful?    Yes | No
5 out of 5

Easy fit

Written By Jamie, Pulaski, TN on Tuesday, July 09, 2013
Crutchfield Customer Review (What's this?)
I will never install speakers without these again.
Made installation a cinch.
Was this review helpful?    Yes | No
2 out of 5

Wiring on 99 Grand Am GT

Written By Conrad, Laurel,De on Monday, June 10, 2013
Crutchfield Customer Review (What's this?)
Wiring for rear speakers didn't match dual input setup. Single vs dual. From wiring didn't match at all. Had to cut and crimp for install.
Was this review helpful?    Yes | No
5 out of 5

GM Speaker Wiring Harnesses

Written By Anonymous, Bradford,Pa on Wednesday, June 05, 2013
Crutchfield Customer Review (What's this?)
proper wires

good fit
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1 out of 5

Wrong part

Written By Charlie, Montana on Saturday, May 19, 2012
Crutchfield Customer Review (What's this?)
The wires were useless, needed the female end for 04 pontiac grand am front door speakers.
Crutchfield response on Monday, May 21, 2012
We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.
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1 out of 5

Does not work on Grand Am!

Written By slappy, PA on Sunday, April 22, 2012
Crutchfield Customer Review (What's this?)
This is the wrong harness for a Grand Am, but judging by all of the other reviews, they have not caught on. If this didn't come free, I would be mad. It has the wrong ends, which are the same as the area they are supposed to plug in to.

I had to cut the harness because it had male ends just like the wires in the car. If you cut the harness and solder the wires together it works fine. This harness doesn't take into account the tweeters as well (99' Grand Am). So with some wire merging and solder, you can keep those working too.
It was a nice gesture.
Do no fit Grand Am
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1 out of 5

GM Speaker Wiring Harnesses to short to of use

Written By Rich H, Kearney Nebraska on Tuesday, January 31, 2012
Crutchfield Customer Review (What's this?)
These wires for my application was useless could not use they were to short
nice offer
to short
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2 out of 5

Almost worked.....

Written By Shan, Missouri on Monday, April 04, 2011
Crutchfield Customer Review (What's this?)
These speaker harnesses worked for the rear, but were about foot short for the
front speaker connections. I'm glad I decided to just rewire the car speakers
instead of just connecting to OME speaker wire. If you have a Grand Am don't
rely on these GM speaker harnesses connections! You'll have to do
some "rigging" to get them to work if you plan on using them. I gave the product
a two star rating because the rear connected flawlessly.
1 out of 1 people found this helpful
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2 out of 5

2000 pontiac grand am

Written By cory T, Mayer,mn on Thursday, February 24, 2011
Crutchfield Customer Review (What's this?)
the harness had the wrong end on it so it wasn't just plug and play. i had to
cut off the end and solder on the old end witch was kind of a plus because the
harness wires were so short anyways there would have been a lot of tension on
them so by soldering on the old connector i was able to add wire and actually
keep the factory tweeters working!!
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2 out of 5

Wrong Connection

Written By hooty, Andrews, TX on Thursday, February 10, 2011
Crutchfield Customer Review (What's this?)
Well i had purchaed a pair of infiniti kappa 462.9 4x6 front speakers for my 2002
Pontiac Grand Am, The connection from the factory harness is an male end going in to
the factory speaker female receptacle, so the male end on this connector is useless, it
needs to be a female, now i had the standard GM factory Sound System so this may be
an issue in a few cars. This may work as an extension if you strip both ends, because
the leads going to the speakers don't work for all speaker connections either, the
infiniti's have screw type connector. I ended up cutting/stripping off the male end on the
facotry wiring then running monster 18awg speaker wire from the factory wire to the new
speakers. i still have this harness connection i may use it another time with another car
or a jumper wire if need be, they were in excellent condition and looked to be a quality
part i did not need.
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2 out of 5

Optional equipement at best

Written By Clinton, Kansas City, Mo on Tuesday, June 02, 2009
Crutchfield Customer Review (What's this?)
This is of no use if used with a monsoon equiped sound system in your grand am. Specifically if your 01 grand am has a component set up front, this will not work for your application. You will find that by disconnecting the factory tweeter, this adapter will mate with that connecter. When you disconnect the woofer, this adapter WILL NOT. It's best to buy a new head unit and run all new wiring for your doors. Don't waste your time with this adapter if you have the same, or feel that you will have a similar setup. Especially if you are thinking of paying money for this. If crutchfield wants to throw it in with your speaker purchase, fine. Roll the dice. Otherwise, rewire your car for use with an aftermarket head unit.
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3 out of 5

Fit car, not speakers

Written By Jonathon, Maple Grove, Mn on Sunday, September 28, 2008
Crutchfield Customer Review (What's this?)
I got these with the new Polk Audio MM component speakers, the harness's fit the car just fine, but wouldn't fit the speaker spade connectors. This wasn't a problem for me since I rewired my entire car before I got these, I just had to go out and buy my own spade connectors, but for those who buy these and plan on using stock wiring then you may have to switch out the spade connectors.
Was this review helpful?    Yes | No

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S&G Wire Cutter/Stripper Tool Cuts and strips 12- to 22-gauge wire
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Metra Crimp Caps Package contains 100 crimp caps — for 14- to 16-gauge wire
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Metra Female Quick Slides An assortment of female quick slide connectors for connecting to speaker terminals
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For a more in-depth review and enhanced detailed information on the GM Speaker Wiring Harnesses, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_12071041/GM-Speaker-Wiring-Harnesses.html ).