Power switch and volume control
Subaru Forester / Subaru Forester Owners Manual / Audio / Power and audio controls / Power switch and volume control

The dial is used for both power (ON/OFF) and volume control. The radio is turned ON and OFF by pushing the dial, and the volume is controlled by turning the dial.
See also:
Windshield wiper and washer switches
The wiper operates only when the ignition switch is in the “ON” or “Acc” position. ...
Foreword
Congratulations on choosing a SUBARU vehicle. This Owner’s
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