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 or Bose. Use to retain systems with the factory Premium/external amp amplified system. Only recommended for new radios that have 4 volt or higher preout voltage. Compatible Vehicles: For vehicles with a factory external amplifier only: Made for Infiniti and Nissan: 1999-2002 G20, 2003-2006 G35, 1996-2005 I30, 2000-2005 I35, 1995-1997 J30, 1997-2001 Q45, 1997-2006 QX4, 1995-1998 200SX, 1995-1998 240SX, 2003-2009 350Z, 1995-2006 ALTIMA, 2004-2007 ARMADA, 2004-2005 ARMADA PATHFINDER, 1998-2008 FRONTIER, 1995-2006 MAXIMA, 2003-2007 MURANO, 1995-2009 PATHFINDER, 2003-2004 PATHFINDER LE, 2003-2004 PATHFINDER SE, 2004-2005 PATHFINDER ARMADA, 2004-2010 QUEST, 1995-2006 SENTRA, 2004-2007 TITAN, 2000-2007 XTERRA