For Installing an aftermarket car radioWires are color coded to match you new aftermarket radio Makes installation quicker No need to tap or cut into factory harness Match color wire to same color on new radio harness Plugs into car harness and then other end into new radio. Fits Subaru years 98 99 00 01 02 03 04 05 06 07 08 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008