Compact Stereo Antenna Harness Adapter for Installing a New Radio Into a Volkswagen, Jetta GLI, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 A Small Compact Antenna adapter for installing a new Radio into a VOLKSWAGEN JETTA GLI 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 CarXtc adapter plugs directly into the antenna wire beyond the radio found in a JETTA GLI Plugs directly into your vehicle radio antenna harness behind the factory radio. Antenna adapter is needed for your VOLKSWAGEN JETTA GLI 93, 94, 95, 96, 97, 98, 99, 00, 01 If installing an FM modulator you will need this and the reverse antenna adapter