Most GM radios from the 1970's to 1988* used a 12 prong plug. Most GM radios from the 90s used a 20 pin plug. (Some late 80s and early 90s GM radios had a 21-pin plug. This is not compatible with those radios unless you cut one of the plugs out of the adapter. Then you might have some wires that are required by your radio that you would have to figure out how to connect. We cannot provide information on the 21-pin radios.) The 80s radios used a larger antenna plug too. This kit comes with the wiring adapter and an antenna adapter. Update your vehicle while still maintaining a factory look. It's a great way to get CD capability and better sound quality!!** (A radio is NOT included. We sell radios that can be used with this adapter package. Drop us an email if you have questions.)
Some vehicles from the 80s (like the Fiero) had a Performance Sound System. For these vehicles you MAY need to perform a simple wiring mod in order for the sub to function properly. The mod is within the wiring adapter and we provide instructions for the Fiero.
Below is a list of GM models/years we show used the 12-prong plug. If your vehicle is on this list, you can use this adapter to make the wiring plug and play on a newer (1990s + some 2000-2002) 20 pin radio, provided your vehicle wasn't equipped with a special sound system (like Bose) and provided you are not trying to put a BOSE head unit in an older vehicle. Please also note it was not uncommon for GM to switch plug styles in the middle of a model year. So, in some cases, not all cars on this list will have the 12-prong plug in the last year listed. (If you have a 1989 Camaro, for example, you will want to make sure your car does not already have a 20 or 21-pin plug before purchasing this adapter.)
- Buick Century 1978-1987
- Buick Electra 1980-1987
- Buick LeSabre 1980-1991
- Buick Park Avenue 1980-1987
- Buick Regal 1978-1987
- Buick Riviera 1979-1985
- Buick Skyhawk 1982-1989
- Buick Skylark 1980-1985
- Buick T-Type 1984-1987
- Cadillac Cimarron 1982-1988
- Cadillac Deville 1977-1987
- Cadillac Eldorado 1978-1991
- Cadillac Fleetwood 1977-1987
- Cadillac Seville 1977-1991
- Chevrolet Astro 1985-1991
- Chevrolet Blazer Fullsize 1973-1988
- Chevrolet Blazer S10 1982-1991
- Chevrolet Camaro 1978-1989
- Chevrolet Caprice 1977-1990
- Chevrolet Cavalier 1982-1987
- Chevrolet Celebrity 1982-1990
- Chevrolet Citation 1985
- Chevrolet Corvette 1977-1989
- Chevrolet El Camino 1978-1987
- Chevrolet Impala 1977-1985
- Chevrolet Malibu 1978-1983
- Chevrolet Monte Carlo 1978-1988
- Chevrolet Nova 1985-1988
- Chevrolet Pickup Full Size 1973-1987
- Chevrolet Pickup S10 1982-1991
- Chevrolet Suburban 1973-1988
- Chevrolet Van 1978-1987
- GMC Jimmy Full Size 1973-1988
- GMC Jimmy S15 1982-1991
- GMC Pickup Full Size 1973-1987
- GMC Pickup S15 1982-1991
- GMC Safari 1985-1991
- GMC Suburban 1973-1988
- GMC Van 1978-1987
- Oldsmobile Cutlass Calais 1985-1987
- Oldsmobile Cutlass Ciera 1982-1987
- Oldsmobile Cutlass Supreme 1984-1988
- Oldsmobile Delta 88 1985-1988
- Oldsmobile Delta 98 1977-1985
- Oldsmobile Firenza 1982-1988
- Oldsmobile Ninety-Eight 1984-1987
- Oldsmobile Omega 1980-1984
- Oldsmobile Starfire 1975-1981
- Oldsmobile Toronado 1979-1989
- Pontiac 6000 1982-1991
- Pontiac Bonneville 1977-1991
- Pontiac Catalina 1977-1981
- Pontiac Fiero 1984-1988
- Pontiac Firebird 1977-1989
- Pontiac Grand Am 1985-1987
- Pontiac Grand Prix 1978-1987
- Pontiac 2000 1982-1983
- Pontiac Le Mans 1978-1981
- Pontiac Parisienne 1983-1986
- Pontiac Phoenix 1980-1984
- Pontiac Sunbird 1975-1988
This adapter kit does NOT include the steering wheel control plug.
**Statements with regard to the ease of installation refer to the wiring and antenna adapters. You are responsible for making sure the newer radio you buy fits in your dash and can be mounted correctly. With the exception of a couple models, many Chevy, GMC and Pontiac radios from the 90s used the 20 pin plug. The same thing applies for some Oldsmobile and Buick radios from the early 90s.