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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619 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?

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  • 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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Great antenna adapter

Written By Steve, Little Rock, AR on Friday, March 27, 2015

Crutchfield Customer Review (What's this?)

I bought this as part of a recommended installation package for a new radio in a 2001 Chevy Silverado 2500 HD. It worked just as described and joined the old antenna barbed connector with the new radios barbless connector.

Pros: Worked exactly as described

Cons: None

Antenna Adapter

Written By Tony, Pennsylvania on Thursday, March 26, 2015

Crutchfield Customer Review (What's this?)

Fit like it was supposed to

Pros: Fit prefectly

Cons: none

Thanks, Crutchfield

Written By JR, Iowa on Thursday, March 26, 2015

Crutchfield Customer Review (What's this?)

Thank you for including this with the radio. Installation was easy!

Pros: Install was easy

Cons: .

Just what I needed.

Written By Bob B, Wallkill, NY on Sunday, March 22, 2015

Crutchfield Customer Review (What's this?)

This is just one of those items that is there when you need it!

Pros: Fits and works as described

Cons: None

Amazing

Written By Z28_Nolan, Scott City, MO on Sunday, March 22, 2015

Crutchfield Customer Review (What's this?)

The Pioneer MVH-X370BT is one good looking and sounding headunit. For not spending a ton of money, I'm as happy as can be. It took me maybe an hour to put install. Everything fit very well in my 1996 Camaro. The wiring harness was easy to put together also. Another thing, if you put the new antenna adapter in, it plugs into the headunit, not the piece that goes into the actual antenna. The Master Sheet can be a little confusing on that part. Overall I love this product. It works perfect and it looks great in the car. Very satisfied.

antenna adapter

Written By bcobb, Brown Summit, NC on Monday, March 16, 2015

Crutchfield Customer Review (What's this?)

I did need a little extra length to my antenna so it worked out perfect

Pros: great product

Cons: nothing

Metra Antenna Adapter

Written By TKS, North Carolina on Wednesday, March 11, 2015

Crutchfield Customer Review (What's this?)

The adapter worked well and made the installation much easier by providing a little extra length to the cable.

Pros: Handy to have.

Cons: None

Metra 40-GM10 Antenna Adapter

Written By Anonymous, Slatedale, PA on Tuesday, March 10, 2015

Crutchfield Customer Review (What's this?)

Very easy to use but a must to have

Perfect!

Written By PatrickW, Clover, SC on Saturday, March 07, 2015

Crutchfield Customer Review (What's this?)

Absolutely perfect! I installed this with my new Pioneer DEH-X6700BT receiver in a 2000 Chevy Silverado 1500.

Pros: Perfect fit, good length

Cons: None

Well, It's an adapter...

Written By Gravel, Texas on Saturday, March 07, 2015

Crutchfield Customer Review (What's this?)

Fits securely and works. What else can I say...

MUST HAVE

Written By G MAN, Clearwater, FL on Saturday, March 07, 2015

Crutchfield Customer Review (What's this?)

Glad Crutchfield recommended this and provided for free! I never would have known otherwise.

Pros: A Must Have

Cons: none

Install easy, reception questionable

Written By Will, KY on Wednesday, March 04, 2015

Crutchfield Customer Review (What's this?)

Easy to install and fit easily into dash. Reception not as good as factory. Not sure if it is unit or antenna

Pros: Easy to install

Cons: reception iffy

Exact fit

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

Crutchfield Customer Review (What's this?)

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.