I recently bought a Schuberth C4 helmet with the SC1A installed and I cannot bluetooth to my new Harley Street Glide CVO. HD has advised that a new HD (Sena) bluetooth is available for my model but it's. expensive to fit and I want to know if the SC1A will bluetooth with this new HD system. I am keen to stop using the tethered helmet communications. When I approached Sena Australia I was referred to Schuberth; they are just setting up in Australia and don't know the answer. I have been pushed around various contacts (including in HD) but cannot get a definitive answer. Can anyone assist please.