PS Engineering PMA9000EX Pilot’s Guide - Manual (Page 18)

Page 18 PMA9000EX Pilot Guide Revision 5
4.4.5 MP3 Music Track selection
The track can be changed whenever the MP3 player is operating by
turning the large data knob. The track title is displayed momentarily.
The display also changes to show the title when the track changes.
4.4.6 MP3 Random Mode
The PMA9000EX MP3 player can be set to play the files in sequence,
or in a random order. The MP3 Random Mode is on the submenu.