It is difficult to mount the mike on the camera systems because there is no boom.  Rather than use the mike that comes with the unit which is impossible to mount unless you have a full face helmet, it might be advisable to offer a throat mike as an option if you don't have a full face helmet.  I actually used the sticky velcro strip and stuck that to the chin strap which kind of works like a throat mike, but that may come off in the future.  An actual throat mike is the answer if you have anything less than a full face helmet.  Most Harley riders use half helmets as I do in the summer.