Metra 40-GM10 Antenna Adapter

Works with select 1985-up General Motors vehicles — Motorola male to female connector for factory antenna

Item #: 12040GM10

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607 Reviews

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Metra 40-GM10 adapter

The Metra 40-GM10 adapter lets you connect an aftermarket receiver to the factory antenna cable. It has a male Motorola plug on one end and a female GM OEM jack on the other. If you're installing an FM modulator with your factory radio, you'll also need item 12040GM20. Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this adapter is compatible with your vehicle. Warranty: 60 days.

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.

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What's in the box?

Download owner's manual

  • GM antenna adapter cable

Product Research

Features

Compatibility: The Metra AntennaWorks GM antenna adapter cable (40-GM10) converts the mini "barbed" or "barbless" plug of the factory antenna to a standard motorola connection for installation of an aftermarket car stereo head unit in select 1985 and later GM vehicles.

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Metra 40-GM10 Antenna Adapter Reviews

Average Customer Review:

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Exact fit

Written By Craig, Clarkson, KY on Sunday, March 01, 2015

Perfect fit works great!!

Antenna Adapter

Written By Jason1, Agana, Guam on Saturday, February 28, 2015

Crutchfield Customer Review (What's this?)

Simple install, needed to ensure radio works correctly.

Pros: Easy as heck to install

Cons: None

Metra 40-GM10 Antenna Adapter

Written By southkak, spartanburg,sc on Saturday, February 28, 2015

Crutchfield Customer Review (What's this?)

Definitely needed this!! Thanks Crutchfield.

Perfect fit

Written By Brian, Kansas on Saturday, February 28, 2015

Crutchfield Customer Review (What's this?)

Perfect fit and the 90 degree end kept it out of the way behind the dash.

Needed Part. Plug and Play

Written By Christopher T., Salt Lake City, UT on Monday, February 23, 2015

Crutchfield Customer Review (What's this?)

Needed to make the Radio work on my Chevy. Great product.

Pros: Very easy to install, a plug and play system

Cons: None

Very simple

Written By wvman, WV on Sunday, February 22, 2015

Crutchfield Customer Review (What's this?)

Just hook ir in to the radio and plug it in to the old antenna wire and you are set.

Pros: Simple

Cons: None

Metra 40-GM10 Antenna Adapter

Written By jeremy, walters,ok on Sunday, February 22, 2015

Crutchfield Customer Review (What's this?)

Cheaply made loose fit

Metra 40-GM10 Antenna Adapter

Written By Josh, Kauai, Hawaii on Thursday, February 19, 2015

Crutchfield Customer Review (What's this?)

Need it to have radio.

Pros: You need it to have radio.

Cons: None

Does what it's supposed to

Written By Gabe D., Montana on Tuesday, February 17, 2015

Crutchfield Customer Review (What's this?)

Can't get real excited about this piece. If Crutchfield tells you that your car needs this antenna adapter, then get it. No other way to hook up the factory antenna without it. It just does what it's supposed to

Pros: ease of use

Cons: none

Antenna adapter

Written By Curtis, Montegut LA. on Tuesday, February 17, 2015

Crutchfield Customer Review (What's this?)

Must have for my vehicle

Pros: Just plug it in no problems

Cons: None

Works fine

Written By merwin, Phoenix, AZ on Monday, February 16, 2015

Crutchfield Customer Review (What's this?)

Works fine. No issues.

Gm antenna adapter

Written By Neil, Minneapolis on Sunday, February 15, 2015

Crutchfield Customer Review (What's this?)

Fit as described

Pros: Great fit

Not worth it

Written By Big Daddy H, New Jersey on Friday, February 13, 2015

Crutchfield Customer Review (What's this?)

Although a good Idea, it did not work at all in my truck. The adapter is longer than the OEM unit and therefore hit the heater box and couldn't be used.

Pros: good idea

Cons: too long for use

Good product

Written By Marc, Eugene, or on Thursday, February 12, 2015

Crutchfield Customer Review (What's this?)

Great fitment

Pros: Works just like it's supposed to

Cons: None

Perfect

Written By Michael, Savannah, GA on Monday, February 09, 2015

Crutchfield Customer Review (What's this?)

Parts worked great for install into Silverado 1500

Pros: Angled head for compatibility in tight spaces.

Cons: none

Perfect

Written By Agen, middletown De on Thursday, February 05, 2015

Crutchfield Customer Review (What's this?)

Perfect fit. No problems

Pros: Perfect fit

Cons: None

Pleased

Written By hoppsing, Texas on Monday, February 02, 2015

Crutchfield Customer Review (What's this?)

plugged right in, no problems

Pros: works just fine

Cons: none

Good

Written By The CDP, Winnipeg, MB on Thursday, January 29, 2015

Crutchfield Customer Review (What's this?)

Works great.

Pros: Like the right angle plug.

pioneer for silverado

Written By scott, arlington on Tuesday, January 27, 2015

Crutchfield Customer Review (What's this?)

These products fit perfectly in my son's 2000 silverado 2500

Antenna adaptor

Written By alalande, Aurora, CO on Sunday, January 25, 2015

Crutchfield Customer Review (What's this?)

No complaints. It does what I need it to.

Pros: Works.

Cons: None really.

Must buy

Written By Justin, Roanoke, va on Thursday, January 22, 2015

Crutchfield Customer Review (What's this?)

This adapter makes installation so much easier and when you buy a head unit from Crutchfield you get it free that's why I always buy Crutchfield you get everything you need

Pros: Easy installation

Cons: A little too long still worked

Easy

Written By Lee, Flowood ms on Wednesday, January 21, 2015

Crutchfield Customer Review (What's this?)

Plug and Plug doesn't get any easier

Pros: Good length to allow movement during install

Cons: None

Easy, Works

Written By Jason T, Georgia on Tuesday, January 20, 2015

Crutchfield Customer Review (What's this?)

It fits on both ends, and seems to tune nicely. Couldn't ask for anything more.

Ground Control to Major Tom

Written By GrantG, Tennessee on Sunday, January 18, 2015

Crutchfield Customer Review (What's this?)

Totally easy to plug between the new radio and old connector.

Pros: I have the magic of radio in my truck.

Cons: A lot of the magic of radio includes Florida-Georgia Line around Nashville way.

Sounds GREAT

Written By TD, New York on Sunday, January 18, 2015

Crutchfield Customer Review (What's this?)

Quick Easy Install. Picked up RECEPTION quite Well. Actually had my initial antenna on my vehicle stolen, but my reception didnt miss a beat with this antenna adaptor

Pros: Easy Installation

Needed reception boost

Written By Louie, Knoxville, TN on Thursday, January 15, 2015

Crutchfield Customer Review (What's this?)

Worked better than expected. I actually now have better reception - was not expecting. Fit with stereo and OEM antenna was AOK.

Pros: Works as it should - improved reception.

Cons: None

Works!

Written By McGurdy, Tennessee on Tuesday, January 13, 2015

Crutchfield Customer Review (What's this?)

It works!

Pros: Does its job!

Silverado

Written By leximusprime, Arizona on Tuesday, January 13, 2015

Crutchfield Customer Review (What's this?)

Definitely Plug-N-Play for after market stereo install

plug n play

Written By Mike, Kalamazoo, Michigan on Thursday, January 08, 2015

Crutchfield Customer Review (What's this?)

Plug n play

Pros: Plug n play

easy install

Written By Patrick, Arizona on Wednesday, January 07, 2015

Crutchfield Customer Review (What's this?)

super easy install and works great

Pros: NA

Cons: NA

Metra 40-GM10 Antenna Adapter

Written By Anonymous, California on Saturday, January 03, 2015

Crutchfield Customer Review (What's this?)

perfect just long enough

Adapter

Written By Brad, New England, ND on Thursday, January 01, 2015

Crutchfield Customer Review (What's this?)

Radio won't wo without it

Pros: Perfect fit

Cons: Required for aftermarket install

Easy Peasy

Written By ScottS, Amarillo, TX on Thursday, January 01, 2015

Crutchfield Customer Review (What's this?)

Solid product, easy installation.

Pros: Works as advertised.

Cons: None

Serves its purpose

Written By AHMc, Alabama on Tuesday, December 30, 2014

Crutchfield Customer Review (What's this?)

It serves ifs purpose. What more can I ask?

Pros: It works.

Cons: none

Metra 40-GM10 Antenna Adapter

Written By Anonymous, Lake Jackson, TX on Monday, December 29, 2014

Crutchfield Customer Review (What's this?)

Simple and easy to install!

Just works!!!!!

Written By Anonymous, Tennessee on Sunday, December 28, 2014

Crutchfield Customer Review (What's this?)

The Metra 40-GM10 Antenna Adapter just works and attaches perfectly.

Metra 40-GM10 Antenna Adapter

Written By Anonymous, NY on Sunday, December 28, 2014

Crutchfield Customer Review (What's this?)