Radio Wire Harness. Use to add an aftermarket radio to the factory vehicle wiring. Standard wire coloring usually will connect color for color to aftermarket radio's wire harness. Plug and play to factory radio connector. For vehicles with premium system like JBL, Infinity, etc.- vehicles with factory external amp. Compatible Vehicles: -Factroy Premium System only -Factroy External Amp Vehicles Only -Made for Ford: 1992-1997 F-Series Pickup/F150/F-150/F-250, 1994 1995 1996 1997 1998 1999 2000 Mustang