See also:

Notes On Playing MP3/WMA Files
The radio can play MP3/WMAfiles; however, acceptable MP3/WMAfile recording media and formats are limited. When writing MP3/WMA files, pay attention to the following restrictions. ...

To Resume Speed
To resume a previously set speed, push the RES (+) button and release. Resume can be used at any speed above 20 mph (32 km/h). ...

Changing the Volume
1. Start a dialogue by pressing the Voice Command button. 2. Say a command (e.g., “Help”). 3. Use the ON/OFF VOLUME rotary knob to adjust the volume to a comfortable level while the Voice Co ...