See also:

Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire quality grading standards”. ...

Selecting preset stations
Presetting a station with a preset button allows you to select that station in a single operation. Up to six AM, FM1, FM2 and FM3 stations each may be preset. ...

Random playback
To playback a track/file(s) at random, press the following button (random button) while the track/file is playing. *1: For type A, B and C audio, press the button for 0.5 second or longer. * ...