Connects2 CT51-NS01 Nissan Amplified Active System Car Stereo Retention Interface Adapter This adaptor is required to replace factory fitted amplified radio with an aftermarket headunit (Alpine, Pioneer, Kenwood, Sony, JVC etc.). It will convert the car original power and speakers wiring connector to a standard ISO connector and actives the factory on board Harmon Kardon amplifier Key Features: Allows the installation of an aftermarket head unit into a vehicle with an OEM amplifier Fits the following vehicles: Manufacturer Model Note Year From Year To Headunit Connection Nissan 350Z 2003 2010 BOSE & Infinity Amplified System OEM Specific Nissan Murano 2005 2008 BOSE & Infinity Amplified System OEM Specific Nissan Patrol 1998 2009 BOSE & Infinity Amplified System OEM Specific Nissan Pathfinder 1996 2004 BOSE & Infinity Amplified System OEM Specific Nissan Maxima 2004 2008 BOSE & Infinity Amplified System OEM Specific Nissan Skyline 1999 2002 BOSE & Infinity Amplified System OEM Specific Installation tips: Please make sure before you make your purchase that this harness is for your vehicle by checking to see if the make, model and year is listed in our description, we also recommend you check to see if the connection in the picture listed is the same as what you have in your vehicle. If unsure please email us so we can advise further To activate the on board Harmon Kardon amplifier, the blue and white wire on the red mini ISO plug needs to be connected to the blue wire coming off the new head unit (marked amp remote)