Ford 1999 Crown Victoria Owner's Manual page 45

When in clock mode, the media information will display for ten seconds,
when the radio is turned on, and then revert to clock information.
Anytime that the media is changed, (new radio station, etc.), the media
information will again display for ten seconds before reverting back to
the clock. In media mode, the media information will always be
displayed.
AM/FM Stereo / Single CD Radio
VOL - PUSH ON
SEEK
TUNE
1
Volume/power control
Press the control to turn the audio
system on or off.
AM
FM
BASS TREB
CD
2 3
Controls and features
FM1
DISC
4
ST
BAL FADE
COMP
5 6
VOL - PUSH ON
SCN
CLK
EJ
45