The primary harness is the harness that plugs into your cars main entertainment system connector and converts it into a double ISO connector system (Universal). After selecting your primary harness you then select a secondary harness to connect between the ISO connectors and the aftermarket head unit that you have ( this is selected based on what brand and type of head unit you have)
This product is known to work in the following vehicles:
Honda Accord 1999-2002
Honda Accord 2003-2007
Honda Civic 2000-2005 Sedan
Honda CRV 2002-2006 RD
Honda Integra 1993-2001
Honda Jazz (Fit) 2002-2008 GD
Honda Odyssey 2000-2003
Honda Odyssey 2004-2008
Honda S2000 1999-2008
Suzuki Alto 2009-2014
Suzuki Grand Vitara 2005-2013
Suzuki Jimny 1998-2004 JL, JLX hard top
Suzuki Jimny 1998-2004 JL, JLX Soft Top
Suzuki Liana 2005-2007
Suzuki Swift 2005-2010
Suzuki SX4 2007-2013
Suzuki Kizashi 2010-2014
Suzuki Swift 2011-2017
Honda Accord Euro 2003-2007
Suzuki S-Cross 2013-
Honda Civic 2000-2005 Hatchback
Honda Integra 2002-2006
Suzuki Jimny 2005-
Suzuki Grand Vitara 2002-2004
Suzuki Grand Vitara 2013-
Suzuki Vitara 2015
Suzuki Kizashi 2015-
Honda MDX 2001-2006
Honda Stream 2006-
.