Pontiac 2004 Grand Prix Owner's Manual page 223

BAND (Alternate Frequency): Alternate frequency
allows the radio to switch to a stronger station with the
same program type. Press and hold BAND for two
seconds to turn alternate frequency on. AF ON
will appear on the display. The radio may switch to
stronger stations. Press and hold BAND again for
two seconds to turn alternate frequency off. AF OFF will
appear on the display. The radio will not switch to
other stations. When you turn the ignition off and then
on again, the alternate frequency feature will
automatically be turned on.
This function does not apply for XM™ Satellite Radio
Service.
Setting Preset PTYs (RDS Only)
The six numbered pushbuttons let you return to your
favorite program types (PTYs). These pushbuttons
have factory PTY presets. You can set up to 12 PTYs
(six FM1 and six FM2) by performing the following steps:
1. Press BAND to select FM1 or FM2.
2. Press the P-TYPE button to activate program type
select mode.
3. Turn the P-TYPE knob to select a PTY.
4. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the PTY you set will return.
5. Repeat the steps for each pushbutton.
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