Acura 2011 RDX Owner's Manual page 280

Playing a USB Flash Memory Device (Models with navigation system)
Push up the selector on the interface
dial to switch the display to the folder
list, then turn the knob on the
interface dial to select a folder.
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Press ENTER to change the display
to the file list, then turn the knob on
the interface dial to select a file.
Press ENTER to set your selection.
To go back to the normal play
display, press the AUDIO button.
Pressing the CANCEL button goes
back to the previous screen and
pressing the MAP button cancels the
audio control display.
2011 RDX
To Select Repeat, Random or Scan
Mode:
You can select any type of repeat,
random and scan modes on the audio
menu screen. Press the AUDIO
button to show the audio control
display. Push down the selector on
the interface dial to display the audio
menu items.