Scosche GM203 GM 30" Narrow Fender Antenna: * Compatible with 1970 and up GM vehicles * 30" steel mast * Narrow fender mount antenna Scosche Vehicle Fit Guide Click Here Locate your vehicle in the application guide. Cross-reference your vehicle"s make and model to determine which installation parts are required to complete your car stereo installation. The installation parts consist of a Dash Kit, Wire Harness and in some cases an Antenna Adapter is also required