Chevrolet Silverado Classic 2007 Owner's Manual page 311

If you hear nothing or hear a garbled sound,
the tape may not be in squarely. Press the eject
button to remove the tape and start over.
If the ignition and radio are off, the tape can be
inserted, but does not play until ignition and radio
are on. If the ignition is on and the radio is off,
the tape can be inserted and begins playing.
While the tape is playing, use the VOL, AUDIO,
and SEEK controls just as you do for the
radio. The cassette tape symbol appears on
the display and an arrow showing which side of
the tape is playing. The tape player plays the
other side of the tape when it reaches the end.
Cassette tape adapter kits for portable CD
players works in the cassette tape player. See
"CD Adapter Kits" later for more information.
The tape bias is set automatically when a metal
or chrome tape is inserted.
If an error appears on the display, see
"Cassette Tape Messages" later in this section.
1 PREV (Previous): The tape must have at
least three seconds of silence between each
selection for previous to work. Press this
pushbutton to go to the previous selection on
the tape if the current selection has been playing
for less than three seconds. If pressed when
the current selection has been playing from
three to 13 seconds, it goes to the beginning of
the previous selection or the beginning of the
current selection, depending on the position on
the tape. If pressed when the current selection
has been playing for more than 13 seconds,
it goes to the beginning of the current selection.
SEEK and a negative number appears on the
display while the cassette player is in the previous
mode. Pressing this pushbutton multiple times
increases the number of selections to be searched
back, up to −9.
2 NEXT: The tape must have at least three
seconds of silence between each selection for next
to work. Press this pushbutton to go to the next
selection on the tape. Pressing this pushbutton
multiple times, in next mode, increases the number
of selections to be searched forward. SEEK and a
positive number appears on the display.
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