Acura 2007 RL Owner's Manual page 226

Audio System
XM
BAND
You can store up to 12
Preset
preset channels using the six preset
buttons. Each button stores one
channel from the XM1 band and one
channel from the XM2 band.
To store a channel:
1. Press the button or scroll
up by pushing the interface
selector up. Either XM1 or XM2
will be shown on the display.
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2. Use the TUNE or SCAN function
to tune to a desired channel.
In category mode, only channels
within that category can be selected.
In channel mode, all channels can be
selected.
3. Pick the preset button you want
for that channel. Press and hold
the button until you hear a beep.
4. Repeat steps 2 and 3 to store the
first six channels.
5. Press the button or scroll
up again. The other XM band will
be shown. Store the next six
channels using steps 2 and 3.
Once a channel is stored, press and
release the proper preset button to
tune to it.