Mode Switch
MODE: Press switch straight in to select the next available audio source.
UP/DN: Press switch up/down to select the previous/next radio station or media file.
Push-To-Talk (PTT)/Volume (VOL) Switch
PTT: Press switch to transmit over CB or intercom.
VOL+/VOL-: Press switch up/down to raise/lower the volume to the passenger headset.
Figure 1. Passenger Controls