This is the lead that mounts on the top of the dash - the windshield antenna plugs into it, and the lead goes to the radio on all GM cars: 1970-1983 Chevelle/Malibu, 1970-1988 Monte Carlo, 1970-1992 Camaro, 1970-1988 Cutlass, 1970-1979 Nova, 1970-1981 GTO/LeMans, 1970-87 Skylark/Regal/GN, 1970-1992 Firebird/Trans Am, 1970-1996 Impala, 1970-1987 El Camino. Replaces GM # 9614424.