Bose A20 Aviation Owner's guide - Page 22

Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET Multifunction/Audio priority switch The multifunction/audio priority switch has three positions: Position Top Function Intercom prioritized over AUX Operation When the switch is in the top position and an intercom signal is detected, AUX audio is muted. Middle Intercom mixed with When the switch is in the middle position and an AUX intercom signal is detected, AUX audio is mixed with the intercom audio. Bottom Intercom only When the switch is in the bottom position, only intercom audio is active. Note: On the Bluetooth® control module, when a Bluetooth wireless technology call is present, the audio from the call mutes the signal on the AUX audio input. In either the top or middle position of the multifunction switch, both the intercom and the Bluetooth wireless technology signal are heard as mixed. 18