CD changer JEEP GRAND CHEROKEE 2005 WK / 3.G Owners Manual

Two Types of Signals
There are two basic types of radio signals... AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary... and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
Electrical Disturbances
Radio waves may pick up electrical disturbances during
transmission. They mainly affect the wave amplitude,
and thus remain a part of the AM reception. They
interfere very little with the frequency variations that
carry the FM signal.
AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio.
NOTE:On vehicles so equipped the radio, steering
wheel radio controls and 6 disc CD/DVD changer will
remain active for up to 45 seconds after the ignition
switch has been turned off. Opening a vehicle front door
will cancel this feature.
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menus and instructions for selecting a variety of destina-
tions and routes, Am/FM stereo radio and six-disc CD
changer with MP3 capability.
Mapping information for navigation is supplied on a
DVD that is loaded into the unit. One map DVD covers
all of North America. Refer to your “Navigation User’s
Manual” for detailed operating instructions.
SATELLITE RADIO — IF EQUIPPED
Satellite radio uses direct satellite to receiver broadcast-
ing technology to provide clear digital sound, coast to
coast. The subscription service provider is Sirius™ Satel-
lite Radio. This service offers up to 100 channels of music,
sports, news, entertainment, and programming for chil-
dren, directly from its satellites and broadcasting studios.
System Activation
To activate your Sirius Satellite Radio service, call the
toll-free number 888-539-7474, or visit the Sirius web site
at www.sirius.com. Please have the following informa-
tion available when activating your system:
1. The Electronic Serial Number/Sirius Identification
Number (ESN/SID).
2. Credit card information.
3. Your Vehicle Identification Number.
Electronic Serial Number/Sirius Identification
Number (ESN/SID)
The Electronic Serial Number/Sirius Identification Num-
ber is needed to activate your Sirius Satellite Radio
system. To access the ESN/SID, refer to the following
steps:
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