i need an intercom system so i can talk to my wife on the back of the bike and so she can talk to me. i prefer voice activated. i have searched and found a few systems but many seem to focus on bike to bike communication. and some are very expensive. the nady system seems ideal, but they seem to have reliability issues. chatterbox is more expensive yet seems to have better reliability. if i understand correctly, you have to push a button to communicate with rider/passenger with the chatterbox system. anyway, does anyone have a system to recommend that is a good and reliable for rider/passenger communication? your help will be appreciated.