Auxiliary relay with HID headlamps. On vehicles (2008-2009) equipped with HID headlamps, an auxiliary relay box is located under the hood on the right-hand side front of the engine compartment. This auxiliary relay box contains the left front and right front HID headlamp relays. №. Description. Ford Mustang (2005 - 2009) - fuse box diagram - Auto Genius Jun 04, 2018Auxiliary relay with HID headlamps (2008-2009) On vehicles equipped with HID headlamps, an auxiliary relay box is located under the hood on the right hand side front of the engine compartment. This auxiliary relay box contains the left front and right front HID headlamp relays. Ford Mustang – fuse box diagram – auxiliary relay box. Related searches for 89 mustang fuse box diagram 95 mustang fuse box diagram95 mustang gt fuse diagram1996 mustang gt fuse diagram1995 mustang fuse diagram95 mustang fuse box2004 mustang fuse box layout2003 ford mustang fuse panel2010 mustang fuse panel diagram