2012 Toyota 4Runner Navigation Manual - Page 272

AUDIO SYSTEM (b) Turning the system on and off (c) Switching between functions "AUDIO": Push this button to display touch−screen buttons for audio system (audio control mode). "POWER/VOL": Push this knob to turn the audio system on and off. Turn this knob to adjust the volume. The system turns on in the last mode used. You can select the function that enables automatic return to the previous screen from the audio screen. See page 212 for details. Push the "AM", "FM", "SAT", "CD" or "AUX" button to turn on the desired mode. Push the "AUDIO" button and touch the "AM", "FM", "SAT", "CD", "BT", "AUX" or "USB" tab to turn on the desired mode. 149