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GM Speaker Wiring Harnesses

For select 1994-05 General Motors-built vehicles

Item #: 12071041

13 Reviews

This item is no longer available.

Original Price: $9.99

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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."

Includes Crutchfield's 60-Day Total Satisfaction Guarantee

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

GM Speaker Wiring Harnesses Reviews

Average Customer Review:

13 Reviews

Awesome thanks

Written by: Jamison from Opp, Alabama on April 12, 2014

2001 Pontiac Grand Am
Crutchfield Customer Review (What's this?)

Couldn't ask for more



Great product

Written by: Deck from Bay city on August 3, 2013

Crutchfield Customer Review (What's this?)

Very easy to use and it was "plug and play"

Pros: Easy install Great quality

Cons: Nothing

Easy fit

Written by: Jamie from Pulaski, TN on July 9, 2013

1996 Chevrolet Blazer
Crutchfield Customer Review (What's this?)

I will never install speakers without these again.

Pros: Made installation a cinch.

Cons: NONE!

Wiring on 99 Grand Am GT

Written by: Conrad from Laurel,De on 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.



GM Speaker Wiring Harnesses

Written by: Anonymous from Bradford,Pa on June 5, 2013

2005 Pontiac Grand Am
Crutchfield Customer Review (What's this?)

proper wires

Pros: good fit


Wrong part

Written by: Charlie from Montana on May 19, 2012

2004 Pontiac Grand Am
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 May 21, 2012 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Does not work on Grand Am!

Written by: slappy from PA on April 22, 2012

1999 Pontiac Grand Am
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.

Pros: It was a nice gesture.

Cons: Do no fit Grand Am

GM Speaker Wiring Harnesses to short to of use

Written by: Rich H from Kearney Nebraska on January 31, 2012

2000 Pontiac Grand Am
Crutchfield Customer Review (What's this?)

These wires for my application was useless could not use they were to short

Pros: nice offer

Cons: to short

Almost worked.....

Written by: Shan from Missouri on April 4, 2011

2002 Pontiac Grand Am
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.



2000 pontiac grand am

Written by: cory T from Mayer,mn on February 24, 2011

2000 Pontiac Grand Am
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!!



Wrong Connection

Written by: hooty from Andrews, TX on 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.



Optional equipement at best

Written by: Clinton from Kansas City, Mo on June 2, 2009

2001 Pontiac Grand Am
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.



Fit car, not speakers

Written by: Jonathon from Maple Grove, Mn on 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.



Hands-on research

What's in the box?

Download owner's manual

  • 2 Speaker harnesses
  • Instructions

Product Research


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.

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 verify what’s in the box, 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.