Acura 2011 RDX Owner's Manual page 294

Remote Audio Controls
If you are playing a disc, the system
skips to the beginning of the next
track (file in MP3 or WMA format)
each time you press the top (＋) of
the CH button. Press the bottom (－)
to return to the beginning of the
current track/file. Press it twice to
return to the previous track/file.
To select a different disc (folder in
MP3/WMA mode), press and hold
the top (＋) or bottom (－) of the CH
button until you hear a beep.
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If you are listening to XM Radio, use
the CH button to change channels.
Each time you press the top (＋) of
the button, the system goes to the
next preset channel. Press the
bottom (－) to go back to the
previous preset channel.
To go to the next channel of the
category you are listening to, press
and hold the top (＋) or bottom (－)
of the CH button until you hear a
beep.
2011 RDX
If you are playing a USB flash
memory device or iPod with the USB
adapter cable, press and release the
top (＋) of the CH button to skip
forward to the beginning of the next
file. Press the bottom (－) to skip
backward to the beginning of the
current file. Press it twice to return to
the previous file.
When playing a USB flash memory
device, you can also use the seek
function to skip the folder. To
activate this, press and hold either
side of the CH button until you hear
a beep.