I normally ride my K1200S and wear Challenger custom molded earphones that have excellent sound quality while acting as earplugs to reduce wind noise. The only thing I have connected to the earphones on the S is a radar detector. I've just bought a 2004 K1200LT for a two up bike that I'd like to have full use of the intercom / music / GPS / radar detector. I don't want to go to a typical helmet mounted speaker / mic system. I'd like to continue to use my molded earphones, install a helmet mounted microphone, and have the whole thing plug into the BMW intercom system. Any idea on how to accomplish this?