Kia Optima 2017, Owner'S Manual, Page: 284 / 776

Aux, USB port
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You can use an aux port to connect au‐
dio devices and an USB port to plug in
an USB or iPod
®
.
NOTICE
When using a portable audio device
connected to the power outlet, noise
may occur during playback. If this
happens, use the power source of
the portable audio device.
❈
iPod
®
is a trademark of Apple Inc.
How vehicle audio works
FM reception
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AM and FM radio signals are broadcast
from transmitter towers located
around your city. They are intercepted
by the radio antenna on your vehicle.
This signal is then received by the radio
and sent to your vehicle speakers.
When a strong radio signal has reached
your vehicle, the precise engineering of
your audio system ensures the best
possible quality reproduction. However,
in some cases the signal coming to your
vehicle may not be strong and clear.
This can be due to factors such as the
distance from the radio station, close‐
ness of other strong radio stations or
the presence of buildings, bridges or
other large obstructions in the area.
Audio system
5-04