Cadillac 2007 CTS Owner's Manual page 271

To activate program types, perform the
following steps:
1. Press the TUNE/SEL knob to enter the
main menu.
2. Turn the TUNE/SEL knob until CATEGORY
appears on the display.
3. Press the TUNE/SEL knob to select ON or
OFF. An X will appear in the box when CAT
is selected on.
4. Press the CLR button to exit the display. To
return to the original display, repeatedly press
the CLR button or wait for the display to
time out.
Once CAT is activated the categories will appear
on the display above the firm keys, in place of
the preset stations, if programmed. Press the firm
key for the category that you would like to
listen to. Not all stations support CAT. The radio
may not go to all of the stations with that
music type when pressing the firm key.
AF (Alternate Frequency): Alternate frequency
allows the radio to switch to a stronger station with
the same category.
To turn AF on or off, perform the following steps:
1. Press the TUNE/SEL knob to enter the
main menu.
2. Turn the TUNE/SEL knob until ALTERNATE
FREQ. appears on the display.
3. Press the TUNE/SEL knob to select AF OFF,
AF ON, or AF REG. An X will appear in the
box when AF is selected on.
4. Press the CLR button to exit the display. To
return to the original display, repeatedly press
the CLR button or wait for the display to
time out.
This function does not apply for XM™ Satellite
Radio Service.
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