44CONTROLSButton Functions ModeSwitching On Brief Button PressSwitching Off Long Button PressVolume Adjustment Knob RotationGoes to last active FM/AM Source andcyclesradio sources and preset bands in theorder FM1/FM2/FM3/AM1/AM2Brief Button PressGoes to Player_Main and cycles Media Source(USB/iPod/Bluetooth Audio) Brief Button PressVolume Activation/Deactivation (Mute/Unmute) Brief Button PressAccess to the Phone Menu and Pick-UpIncoming Call Brief Button PressHang-Up Ongoing Call Brief Button PressReturn Back to Upper/Previous Menu Brief Button Press