C-10 here, Escort Passport (older model), I almost always run (pun *is* intended) with a tank bag.
Detector is plumbed into the tank bag via a RJ-11 (phone) connector to my aux fuse block. Audio output from the detector is piped into my helmet speakers via a real short cable from the Passport to the outside of the tank bag, thence via a cable/plug/socket to my helmet.
Works peachy, except for LIDAR (laser). Laser is optical; old style radar is radio waves... And radio waves pass through a fairing (and tank bag) without much trouble.
Advantage is if I ever get pulled over, "Officer Friendly" has narry a clue I have a detector. He can't see the unit, and the audible alarm is in my helmet, and that is dead when I turn the key off and remove my helmet.
Rick