4153
Features of your vehicle
How vehicle audio works
AM and FM radio signals are broad-
cast from transmitter towers located
around your city. They are intercept-
ed by the radio antenna on your vehi-
cle. 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 vehi-
cle may not be strong and clear. This
can be due to factors, such as the
distance from the radio station,
closeness of other strong radio sta-
tions or the presence of buildings,
bridges or other large obstructions in
the area.
AM broadcasts can be received at
greater distances than FM broad-
casts. This is because AM radio
waves are transmitted at low fre-
quencies. These long, low frequency
radio waves can follow the curvature
of the earth rather than travelling
straight out into the atmosphere. In
addition, they curve around obstruc-
tions so that they can provide better
signal coverage.
JBM002
AM reception
JBM001
FM reception
4155
Features of your vehicle
Using a cellular phone or a two-
way radio
When a cellular 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 cellular phone at a place as far as
possible from the audio equipment.
Satellite radio reception
You may experience difficulties in
receiving XM™ satellite radio signals
in the following situations.
If you are driving in a tunnel or a
covered parking area.
If you are driving beneath the top
level of a multi-level freeway.
If you are driving under a bridge.
If you are driving next to a tall vehi-
cle (such as a truck or a bus) that
blocks the signal.
If you are driving in a valley where
the surrounding hills or peaks
block the signal from the satellite. If you are driving on a mountain
road where is the signal blocked by
mountains.
If you are driving in an area with tall
trees that block the signal (30 ft. /10m
or more), for example on an road that
goes through a dense forest.
The signal can become weak in
some areas that are not covered
by the XM™ repeater network.
NOTE:
There may also be additional
unforeseen circumstances leading
to reception problems with the
XM™ satellite radio signal.
CAUTION
When using a communication
system such as a cellular phone
or a radio set inside the vehicle, a
separate external antenna must
be fitted. When a cellular phone
or a radio set is used with an
internal antenna alone, it may
interfere with the vehicle's elec-
trical system and adversely affect
safe operation of the vehicle.
WARNING
Do not use a cellular phone
while driving. Stop at a safe
location to use a cellular phone.
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