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Metra 40-GM12

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

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• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

See compatible vehicles Learn more about the met-40gm12
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List price $16.99
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Description


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Authorized dealer


40-GM12

If you are replacing the radio in your vehicle, this antenna adapter ensures that you can continue to use your factory antenna. It is a simple yet necessary connector that adapts the vehicle’s original antenna cable to plug into an aftermarket radio with a male Motorola connector on one end and a female a connector for a mini “barbed” or “barbless” connector from the factory antenna on the other.


Product Details:

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2010 Dodge Nitro is not compatible. Change vehicle or See list of compatible similar products


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Item Details


Manufacturer:

Model Number:

40-GM12

Weight:

0.25lbs

Internal SKU:

met-40gm12

Internal Product ID:

12833

Customer Ratings & Reviews


Metra 40-GM12 thumbnail image

5 star
90%
4 star
10%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
4.9
Features
4.9
Design
4.9
Usability
4.7

Customer Reviews

Sort by:

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Helpful part.

This part made connecting antenna wire to new stereo a breeze. A must have product.

By Timmy on October 13, 2014

40 found this helpful


Great buy

It works great. Fits right into my antenna cable and then into the radio.

By Austin on June 27, 2011

34 found this helpful


Perfect for my radio

This item is perfect for Gm cars and trucks works great thanks again.

By Chad on June 21, 2014

33 found this helpful


Antenna Cable Adapter

Used to connect the window antenna cable of a Mits 3000GT to a standard antenna jack on an aftermarket receiver head.

By Ron on June 18, 2013

32 found this helpful


Good adapter, worked on 1999 lesabre factory to alpine deck

Worked as intended for a 1999 Lesabre Custom stock stereo harness to Alpine deck.

By Rob on October 7, 2013

29 found this helpful


Great product

This is a great product and the fit was good

By Shon on November 13, 2013

27 found this helpful


Great value

So needed this for this install or I would have no radio.

By Kingharris on March 20, 2018

22 found this helpful


By Harrison on December 29, 2024 Checkmark Icon Verified purchase


By omar on July 28, 2024 Checkmark Icon Verified purchase


By enache on July 6, 2024 Checkmark Icon Verified purchase



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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.