Home > Car Audio Accessories > Antenna Adapters > Metra 40-GM21 2003 - 2005 GMC SIERRA 3500 Car Antenna Adapter

Metra 40-GM21 2003 - 2005 GMC SIERRA 3500 Car Antenna Adapter

List Price:  $8.00
Price:  $6.78
You Save:  $1.22 (15%)
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2003 - 2005 GMC SIERRA 3500 Antenna Adapter

Antenna Adapter for GMC SIERRA 3500 2003 - 2005


  • Metra 40-GM21 2003 - 2005 GMC SIERRA 3500 Car Antenna Adapter
  • SKU: 40-GM21_23727
  • Antenna Adaptor
  • For Factory Radio w/Mini Barb Less Connector/Aftermarket Antenna
  • This item is New
  • 1-Year Manufacturer's Warranty
  • 30-Day Half Price Car Audio Warranty
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Return Policy
This item can be returned un-opened within 14-Days for a refund, minus a 20% restocking fee, and minus shipping.


Warranty Information
  • This item has a 30-day in-house warranty.
  • This item has a 1-Year manufacturer's warranty.