Looking for a broken unit or parts for a Sena SMH10. I recently purchased (individual on E-bay) a dual set of Sena SMH10 headsets and love them. The problem is one of the contacts on the inside of the main unit has broken off. I have called Sena and looked all over the internet and have came up short of finding anyone or even parts to repair this unit. Any help in a broken unit or parts would be great. Thanks