See also:

To select a chapter from its beginning when connecting iPod®
While podcasts or audiobooks are playing, select a chapter in the same way that a track is selected when a CD is played. For details, refer to “To select a track from its beginning”. ...

Bluetooth® audio operation
NOTE Depending on the connected device, it may not activate as per the following items or not work smoothly. ...

Random playback
Random playback is operated in the same way a CD is played. Refer to “Random playback”. Each time you press the “RPT/RDM” button for 0.5 second or longer, the mode changes in the following sequence. ...