Harris Race Radios how to fit a professional helmet kit.
If using speakers they need to be positioned in the helmet facing the ear, the closer the speaker is aligned to the ears the loader and clearer the audio will be.
One of our engineers can fit any helmet kit for you. ROUX Helmets, Stilo Helmets, Arai Helmets, HJC, Bell helmets, etc.
Harris Race Radios Nexus Euro 5 way plug, used on some European radio systems. Harris Race Radios has the adapters.