I installed the Sena bluetooth headset, dongle and the Victory Audio Harness (Y cable) last night. I have a 2012 CCT and a Shark Evoline Series 3 helmet. Installing the Audio Harness was a breeze because all I had to do was remove the headlight for access to the oem radio where it plugs in. I wasn't looking forward to removing the fairing and was glad I didn't have to. The Sena dongle plugs into the Audio Harness and the Sena headset easily installed into the Shark helmet. It took all of about 3 minutes to sync the Sena headset to my iPhone and the Sena radio dongle to the headset. All in all it's a 30 minute installation taking your time to read and re-read the instructions.