See also:

Deleting speed dials
Select “Delete Speed Dial (Del Spd Dial)” using a voice com- mand or the “TUNE/SEL” knob. Press the preset button to which the desired speed dial is regis- tered, and select “Confirm� ...

Using the radio
...

Adjusting sound quality and volume balance
Press the “TUNE/SEL” knob to enter iPod menu mode. Pressing the “TUNE/SEL” knob changes sound modes.  - About iPod • Apple is not responsible for the operation of this device o ...