This heavy-duty Z-Series 8-pin lower-section hook-up cord is to be used with all J&M Elite Series headset #s HS- ECD629, HS-ICD629, HS-ECD584, HS-ICD584,HS-ECD477, HS-ICD477, HS-ECD374, HS-ECD271 and HS-ECD269 headsets for connection to 1980-2016 Honda and J&M 5-pin audio systems.