Description
Metra 40-GM18 Aftermarket Antenna Adapter for Select GM Factory Antenna Cables
Join a compatible aftermarket antenna to the original GM antenna cable with the Metra 40-GM18. This inline cable adapter provides the connection between the replacement antenna and the factory cable in the listed GM applications.
Features
- Connect an aftermarket antenna to the supported original GM antenna cable.
- The inline adapter bridges the factory cable and replacement antenna connection formats.
- A female antenna socket accepts the matching aftermarket antenna plug shown in the official gallery.
- Both ends are supplied on an assembled cable adapter for the specified connection.
- Use the detailed model-year list and actual factory cable connection to confirm compatibility.
Technical Specifications
| Application | Aftermarket antenna to GM factory antenna cable |
|---|---|
| Form | Inline cable adapter |
| Included item | One assembled antenna adapter |
| Vehicle coverage | Selected GM applications; see detailed list |
Vehicle Applications
- 1988-1989 Buick Century
- 1991-1994 Buick Commercial Chassis
- 1988-1989 Buick Electra
- 2005-2008 Buick LaCrosse
- 1988-1994 Buick LeSabre
- 1991-1994 Buick Park Avenue
- 2004-2007 Buick Rainier
- 1990-1991 Buick Reatta
- 1988-1994 Buick Regal
- 2002-2007 Buick Rendezvous
- 1986-1995 Buick Riviera
- 1991-1994 Buick Roadmaster
- 1988-1989 Buick Skyhawk
- 1987-1995 Buick Skylark
- 2005-2007 Buick Terraza
- 1987-1992 Cadillac Brougham
- 1988-1996 Cadillac Commercial Chassis
- 1988-1995 Cadillac DeVille
- 1988-1995 Cadillac Eldorado
- 1999-2006 Cadillac Escalade
- 2003-2006 Cadillac Escalade ESV
- 2002-2006 Cadillac Escalade EXT
- 1988-1996 Cadillac Fleetwood
- 1988-2004 Cadillac Seville
- 1985-1990 Chevrolet Astro
- 2002-2006 Chevrolet Avalanche 1500
- 2002-2006 Chevrolet Avalanche 2500
- 1988-1990 Chevrolet Beretta
- 1992-1994 Chevrolet Blazer
- 1992-1994 Chevrolet C1500 Suburban
- 1992-1994 Chevrolet C2500 Suburban
- 1990-1992 Chevrolet Camaro
- 1988-1993 Chevrolet Caprice
- 1988-1990 Chevrolet Cavalier
- 1990 Chevrolet Celebrity
- 1988-1990 Chevrolet Corsica
- 1984-2008 Chevrolet Corvette
- 2001-2007 Chevrolet Express 1500
- 2001-2007 Chevrolet Express 2500
- 2001-2007 Chevrolet Express 3500
- 1992-1994 Chevrolet K1500 Suburban
- 1992-1994 Chevrolet K2500 Suburban
- 1990-1992 Chevrolet Lumina APV
- 2006-2007 Chevrolet Malibu
- 1988 Chevrolet R10 Suburban
- 1988 Chevrolet R20 Suburban
- 1989-1991 Chevrolet R1500 Suburban
- 1989-1991 Chevrolet R2500 Suburban
- 2003-2007 Chevrolet Silverado 1500
- 2003-2005 Chevrolet Silverado 1500 HD
- 2007 Chevrolet Silverado 1500 HD Classic
- 2003-2007 Chevrolet Silverado 2500
- 2003-2011 Chevrolet Silverado 2500 HD
- 2003-2006 Chevrolet Silverado 3500
- 1998-2004 Chevrolet Tracker
- 2002-2008 Chevrolet Trailblazer
- 2002-2006 Chevrolet Trailblazer EXT
- 2005-2008 Chevrolet Uplander
- 1988 Chevrolet V10 Suburban
- 1988 Chevrolet V20 Suburban
- 1989-1991 Chevrolet V1500 Suburban
- 1989-1991 Chevrolet V2500 Suburban
- 1992-1994 GMC C1500 Suburban
- 1992-1994 GMC C2500 Suburban
- 2004-2008 GMC Canyon
- 1988-1991 GMC Jimmy
- 1992-1994 GMC K1500 Suburban
- 1992-1994 GMC K2500 Suburban
- 1988-1991 GMC R1500 Suburban
- 1988-1991 GMC R2500 Suburban
- 1985-1995 GMC Safari
- 1991-1993 GMC Sonoma
- 1991 GMC Syclone
- 1988-1991 GMC V1500 Suburban
- 1988-1991 GMC V2500 Suburban
- 1992-2006 GMC Yukon
- 2003-2006 GMC Yukon XL 1500
- 2003-2006 GMC Yukon XL 2500
- 2003-2007 Hummer H2
- 2006-2009 Hummer H3
- 2009-2010 Hummer H3T
- 2003-2006 Hyundai Santa Fe
- 2003-2005 Isuzu Ascender
- 1998-2000 Isuzu Hombre
- 1992-1993 Oldsmobile 88
- 1988-1993 Oldsmobile 98
- 1992 Oldsmobile Achieva
- 2001-2004 Oldsmobile Alero
- 1991-1994 Oldsmobile Bravada
- 1988-1991 Oldsmobile Cutlass Calais
- 1988-1994 Oldsmobile Cutlass Ciera
- 1991-1994 Oldsmobile Cutlass Cruiser
- 1988-1994 Oldsmobile Cutlass Supreme
- 1988-1991 Oldsmobile Delta 88
- 1998-2002 Oldsmobile Intrigue
- 1997-1998 Oldsmobile Regency
- 1990-1992 Oldsmobile Silhouette
- 1983-1992 Oldsmobile Toronado
- 1986-1991 Pontiac 6000
- 2001-2005 Pontiac Aztek
- 1992-1993 Pontiac Bonneville
- 1988-1992 Pontiac Firebird
- 2005-2008 Pontiac G6
- 1988-1995 Pontiac Grand Am
- 1988-2008 Pontiac Grand Prix
- 1988-1993 Pontiac LeMans
- 2005 Pontiac Montana
- 1988-1994 Pontiac Sunbird
- 2000-2005 Pontiac Sunfire
- 2006 Pontiac Torrent
- 1990-1992 Pontiac Trans Sport
- 2003-2008 Pontiac Vibe
- 2003-2008 Toyota Matrix
Installation Notes
This part connects to the factory antenna cable. Match the exact vehicle and connector before ordering. No cable length or single-product weight is stated in the reviewed manufacturer sources.