Compact Stereo Antenna Harness Adapter for Installing a New Radio Into a Chevrolet, Suburban, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 Antenna adapter for installing a new Radio into a CHEVROLET SUBURBAN 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 CarXtc adapter plugs directly into the antenna wire beyond the radio found in a SUBURBAN Plugs directly into your vehicle radio antenna harness behind the factory radio. Antenna adapter is needed for your CHEVROLET SUBURBAN 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 If installing an FM modulator you will need this and the reverse antenna adapter