Pontiac 1993 Sunbird Owner's Manual page 99

Comfort Controls & Audio Systems
Understanding Radio Reception
FM Stereo
FM Stereo will give you the best sound,
but FM signals will reach only about 10
to 40 miles (16 to 65 km). Tall buildings
or hills can interfere with FM signals,
causing the sound to come and go.
AM
The range for most AM stations is
greater than for FM, especially at night.
The longer range, however, can cause
stations to interfere with each other.
AM can also pick up noise from things
like storms and power lines. To lower
this noise, try reducing the treble level.
Care of Your Cassette Tape
Player
A tape player that is not cleaned
regularly is subject to reduced sound
quality, ruining the cassette, or damaging
the mechanism. Tape cassettes that are
not properly stored in their plastic cases
away from contaminants, direct
sunlight, and extreme heat may not
operate properly and could cause
premature failure of the tape player.
Your tape player should be cleaned
monthly or with every 15 hours of use,
as regular maintenance. If you notice a
reduction in sound quality, try a good
cassette to see if the tape or the tape
player is at fault. If the second cassette
results in no improvement in sound
quality, try cleaning the tape player.
Proper tape player cleaning should be
done with a wiping action nonabrasive
cleaner cassette. To properly clean your
tape player, you should follow the
directions on the cleaning cassette.
Cassettes are subject to wear and the
sound quality may degrade over time.
Always verify that the cassette tape is in
good condition before obtaining service
on your tape player.