Tips Before Buying: The aftermarket harness adapter does NOT support JBL function, NOT compatible with Premium AMP system, like bose, infinity etc. Does not fit vehicles with 6 speakers system. If your car OEM radio head unit is not 21-Pin, this harness DOESN’T fit your car; Radio Wiring Harness Adapter for Buick/Cadillac: Compatible with Buick Century (1988–1996), Electra (1988–1990), Le Sabre (1988–1994), Park Avenue (1988–1994); Cadillac Coupe DeVille (1988–1993), DeVille (1988–1995), Eldorado (1988–1991), Escalade (1999–2002), Seville (1988–1991); Car Stereo Harness Adapter for Chevy/GMC: Compatible with Chevy Astro (1989–2005), S-10 (1989–2002), Silverado 1500 (1999–2002), Suburban (1992–2002), Tahoe (1995–2002); GMC Envoy (1998–2001), Jimmy (1994–2001), Savana (1996–2000), Sonoma (1993–2002), Yukon (1992–2002); Radio Harness Replacement for Pontiac/Oldsmobile/Isuzu: Compatible with Pontiac 6000 (1990–1991), Bonneville (1992–1999), Firebird (1990–2002); Oldsmobile Achieva (1992–1995), Cutlass Ciera (1988–1996), Cutlass Supreme (1990–1994); Isuzu Hombre (1996–2001); Stereo Installation Wire Harness: This radio wire harness adapter is made of high-quality plastic and featuring copper wires with PVC housing for superior durability and conductivity, ensuring a reliable and easy installation for your car stereo system; Factory Antenna Adapter: The kit includes 1 radio antenna adapter that connects the factory antenna jack to your new stereo. Restores radio signal and lets you play FM/AM through your device. Package Includes:
1 × Stereo Harness Adapter

1 × Antenna Adapter

Compatible Buick Models:
Compatible with Buick Century (1988–1996)
Compatible with Buick Electra (1988–1990)
Compatible with Buick Le Sabre (1988–1994)
Compatible with Buick Park Avenue (1988–1994)

Compatible Cadillac Models:
Compatible with Cadillac Coupe DeVille (1988–1993)
Compatible with Cadillac DeVille (1988–1995)
Compatible with Cadillac Eldorado (1988–1991)
Compatible with Cadillac Escalade (1999–2002)
Compatible with Cadillac Seville (1988–1991)

Compatible Chevy Models:
Compatible with Chevy Astro (1989–2005)
Compatible with Chevy K1500/K2500/K3500 (1995–1998)
Compatible with Chevy S-10 (1989–2002)
Compatible with Chevy S-10 Blazer (1989–2002)
Compatible with Chevy Silverado 1500 (1999–2002)
Compatible with Chevy Suburban (1992–2002)
Compatible with Chevy Tahoe (1995–2002)
Compatible with Chevy Venture (1997–1999)

Compatible GMC Models:
Compatible with GMC Envoy (1998–2001)
Compatible with GMC Jimmy (1994–2001)
Compatible with GMC S-15 Sonoma (1993–2002)
Compatible with GMC Savana (1996–2000)
Compatible with GMC Yukon (1992–2002)

Compatible Pontiac Models:
Compatible with Pontiac 6000 (1990–1991)
Compatible with Pontiac Bonneville (1992–1999)
Compatible with Pontiac Firebird (1990–2002)
Compatible with Pontiac Grand AM (1990–2000)
Compatible with Pontiac Trans AM (1990–2002)

Compatible Oldsmobile Models:
Compatible with Oldsmobile Achieva (1992–1995)
Compatible with Oldsmobile Bravada (1991–1997)
Compatible with Oldsmobile Cutlass Calais (1990–1991)
Compatible with Oldsmobile Cutlass Ciera (1988–1996)
Compatible with Oldsmobile Cutlass Supreme (1990–1994)