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Metra 40-GM21 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1988-2009 vehicles from GMC, Chevrolet, Pontiac

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• Factory Radio with Mini "Barbless" Connector to Aftermarket Antenna Adapter
• select 1988-2009 vehicles from GMC, Chevrolet, Pontiac Vehicles

See compatible vehicles Learn more about the met-40gm21
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List price $6.99
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Description


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Authorized dealer

Compatible Vehicles


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

The vehicle you have selected 2012 GMC Savana 3500 is not compatible. Change vehicle or See list of compatible similar products


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Item Details


Manufacturer:

Model Number:

40-GM21

Weight:

0.25lbs

Internal SKU:

met-40gm21

Internal Product ID:

12835

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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.