1993 Cadillac DeVille Owner's Manual - Page 173
1993 Cadillac DeVille Manual
Page 173 highlights
The controlbehind the upperknob allows youto balance the sound between the right and left speakers. The Lower Knob Turn the lower knob to tuneradio stations. The tune knob increases and decreases frequency when it is slightly rotated against the spring load. Push it to get AM or FM. The controlbehind the lower knob fades thesound between your front and rear speakers. RCL It tells you the time. (When the ignition is off, push RCL to display the time.) With the radioon, when the time is displayed,push it to see the frequency. SEEK Pressing the SEEK A or v button will cause the receiver to seek the next higher or lower station andstop. SCAN When you press SCAN, the radiowill go to thenext station and pause and keep doing that until you press SCAN again.