The SO and I took a ride today for the first time on the new '07 and I noticed a clicking noise coming through the Intercom system. This only happens when her (rear) helmet is connected to the Intercom and the Intercom is turned on. If I unplug her helmet, the clicking stops. If both helmets are plugged in, and I turn off the Intercom, the clicking stops. This occurs with the satellite radio or regular AM/FM radio turned on. Any suggestions?