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-CD9279, HS-BCD277, HS-ICD277, HS-BCD257, HS-BCD174, HS-ICD174 and HS-CD9174, for connection to 1980-2014 Honda® and J&M® 5-pin audio systems. Single.