Kia Soul 2018 Owner's Manual page 278

Using a mobile phone or a two-
way radio
When a mobile phone is used inside
the vehicle, noise may be produced
from the audio system. This does not
mean that something is wrong with the
audio equipment. In such a case, use
the mobile phone at a place as far as
possible from the audio equipment.
CAUTION
When using a communication
system such as a mobile phone
or a radio set inside the vehicle,
a separate external antenna
must be fitted. When a mobile
phone or a radio set is used
with an internal antenna alone,
it may interfere with the vehi-
cle's electrical system and
adversely affect safe operation
of the vehicle.
WARNING
Do not use a mobile phone
whilst driving. Stop at a safe
location to use a mobile phone.
Audio system
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