Description
Metra 40-GM21 Reverse Antenna Adapter for Select GM Factory Radios with Mini Barbless Connection
Replace the antenna while retaining the original radio in a supported GM application. The Metra 40-GM21 adapts the factory radio's mini barbless antenna connection to a compatible aftermarket antenna, using a male plug at the factory side and a female Motorola socket at the antenna side.
Connection Features
- Connect a compatible replacement antenna without replacing the original GM radio.
- Designed for the factory radio's mini barbless antenna connection specified by Metra.
- The female Motorola socket provides the aftermarket-antenna connection.
- The right-angle male end shown in the official gallery turns the cable at the factory connection.
- Official applications span selected 1988-2008 vehicles; check the individual model and connector style.
Technical Specifications
| Application | Aftermarket antenna to factory radio |
|---|---|
| Factory interface | GM mini barbless |
| Connector descriptions | Male Motorola; female Motorola |
| Form | Cable adapter |
Vehicle Applications
- 1990-2005 Buick Century
- 1995-1996 Buick Commercial Chassis
- 1990 Buick Electra
- 1995-1999 Buick LeSabre
- 1995-2005 Buick Park Avenue
- 1988-1989 Buick Reatta
- 1995-2004 Buick Regal
- 1996-1999 Buick Riviera
- 1995-1996 Buick Roadmaster
- 1996-1998 Buick Skylark
- 1997-2001 Cadillac Catera
- 1996-2005 Cadillac DeVille
- 1996-2002 Cadillac Eldorado
- 1992-2001 Cadillac Seville
- 1991-2005 Chevrolet Astro
- 1991-1996 Chevrolet Beretta
- 1995-1999 Chevrolet C1500 Suburban
- 1995-1999 Chevrolet C2500 Suburban
- 1993-2002 Chevrolet Camaro
- 1994-1996 Chevrolet Caprice
- 1991-2005 Chevrolet Cavalier
- 1991-1996 Chevrolet Corsica
- 2005 Chevrolet Equinox
- 1996-2000 Chevrolet Express 1500
- 1996-2000 Chevrolet Express 2500
- 1996-2000 Chevrolet Express 3500
- 1994-2005 Chevrolet Impala
- 1995-1999 Chevrolet K1500 Suburban
- 1995-1999 Chevrolet K2500 Suburban
- 1990-2001 Chevrolet Lumina
- 1993-1996 Chevrolet Lumina APV
- 1997-2003 Chevrolet Malibu
- 1995-2005 Chevrolet Monte Carlo
- 1999 Chevrolet S10
- 1999-2002 Chevrolet Silverado 1500
- 2001-2005 Chevrolet Silverado 1500 HD
- 2007 Chevrolet Silverado 1500 HD Classic
- 1999-2002 Chevrolet Silverado 2500
- 2001-2002 Chevrolet Silverado 2500 HD
- 2001-2002 Chevrolet Silverado 3500
- 2003-2006 Chevrolet SSR
- 2000-2006 Chevrolet Suburban 1500
- 2000-2006 Chevrolet Suburban 2500
- 1995-2006 Chevrolet Tahoe
- 1997-2005 Chevrolet Venture
- 1995-1999 GMC C1500 Suburban
- 1995-1999 GMC C2500 Suburban
- 2002-2008 GMC Envoy
- 2002-2006 GMC Envoy XL
- 2004-2005 GMC Envoy XUV
- 1995-1999 GMC K1500 Suburban
- 1995-1999 GMC K2500 Suburban
- 1996-2005 GMC Safari
- 1996-2007 GMC Savana 1500
- 1996-2007 GMC Savana 2500
- 1996-2007 GMC Savana 3500
- 2003-2007 GMC Sierra 1500
- 2003-2004 GMC Sierra 2500
- 2003-2006 GMC Sierra 2500 HD
- 2003-2006 GMC Sierra 3500
- 1994-2004 GMC Sonoma
- 1995-2002 GMC Yukon
- 2001-2002 GMC Yukon XL 1500
- 2001-2002 GMC Yukon XL 2500
- 1994-1999 Oldsmobile 88
- 1994-1996 Oldsmobile 98
- 1993-1998 Oldsmobile Achieva
- 1999-2000 Oldsmobile Alero
- 1995-1999 Oldsmobile Aurora
- 1996-2004 Oldsmobile Bravada
- 1997-1999 Oldsmobile Cutlass
- 1995-1996 Oldsmobile Cutlass Ciera
- 1995-1997 Oldsmobile Cutlass Supreme
- 1996-1999 Oldsmobile LSS
- 1993-1999 Oldsmobile Silhouette
- 1994-1999 Pontiac Bonneville
- 1993-2002 Pontiac Firebird
- 1996-2005 Pontiac Grand Am
- 1994-2003 Pontiac Grand Prix
- 1999-2005 Pontiac Montana
- 1995-1999 Pontiac Sunfire
- 1993-1998 Pontiac Trans Sport
- 1995-1999 Saturn SC1
- 1995-1999 Saturn SC2
- 1995-1999 Saturn SL
- 1995-1999 Saturn SL1
- 1995-1999 Saturn SL2
- 1995-1999 Saturn SW1
- 1995-1999 Saturn SW2
Installation Notes
Use with the specified mini barbless factory-radio connection. The overall year span is not a claim that every GM model in those years is compatible.