I've been using the Cardo Systems Q2 for Bluetooth connection to my phone and when it works, it works great...but it's not always dependable. I'm experiencing declining volume levels in the helmet's speakers. I have the Tour Premium, but did not get the CB and don't know too much about how the CB works on the Vision. Can someone take a moment to enlighten me to tell me if it's worth the money? What features to you get with it? How's the passenger intercom? How about the helmets...can it fit to most helmets, or do you have to buy a special helmet?