See also:

Remote Control
Remote Control ...

Winter Operation
Use of the air Recirculation mode during winter months is not recommended because it may cause window fogging. ...

Operating Instructions — Radio Mode
NOTE: The ignition switch must be in the ON/RUN or ACC position to operate the radio. Power Switch/Volume Control (Rotary) Push the ON/VOLUME control knob to turn on the radio. Push the ON/VOLUM ...