Chevrolet 1994 Astro Passenger Owner's Manual page 146

Clock
To set the clock, just:
0
Press SET. (SET appears in the VF display for a few seconds.)
Within 5 seconds, push and hold SCAN until the correct hour appears.
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Press and hold SEEK until the correct minute appears.
To display the clock with the ignition off, push the upper knob. The time
will be displayed for a few seconds.
To Play A Cassette
Your tape player is built to work best with tapes that are 30 to 45 minutes
long on each side. Tapes longer than that are so thin they may not work well
in this player.
To play a cassette tape:
Have the radio on.
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Insert the tape squarely through the tape door.
The longer side with the tape visible goes in first. If you hear nothing or
hear just garbled sound, it may not be in squarely.
Push STOP-EJECT to remove the tape and start over.
Once the tape is playing, use the upper and lower knobs for volume and
balance, just as you do for radio. The arrows show which side of the tape is
playing.
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To
go
forward to another part of the tape, push
, .
To go backward, push 4. To stop the tape, push the STOP-E JECT
button lightly.
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To go from one side of the tape to the other, push in the upper knob on
your radio. To remove or stop the tape, push STOP-EJECT.
APS (Automatic Program Search)
Press this button to activate the automatic program search. When the
button is pressed, the tape will rapidly advance to the beginning of the next
selection. When the 4 button is pressed, the tape will rapidly reverse to the
beginning of the current selection.
Press STOP-EJECT to remove the cassette and start the radio.
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