This P-Series 8-pin lower-section hook-up cord is to be used with all J&M headset series #’s HS-ICD284, HS-BCD279, HS-ICD279, HS-BCD277, HS-ICD277, HS-BCD257, HS-BCD174, HS-ICD174 and #HS-CD9174 series helmet headsets, for connection to 1983-2009 Yamaha®, Kawasaki® and Suzuki® 5-pin audio systems, 1989-1997 Harley® 5-pin audio systems and 1988-2000 Honda® GL-1500 with J&M passenger controller.