Radio wire harness used 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. RCA connection connects to the new radio's audio pre-outs. Only for vehicles that came with an external factory amp. Use to retain systems with the factory Premium/external amp amplified system. Compatible Vehicles: For vehicles with a factory external amplifier only: Made for 1994-1996 Dodge Stealth; Made for Mitsubishi: 1994-1999 3000GT, 1992-2004 Diamante, 1995-2005 Eclipse, 1994-2003 Galant, 2002-2007 Lancer, 1997-2002 Mirage, 1997-2005 Montero, 1997-2004 Montero Sport, 2003-2006 Outlander