2008 JEEP GRAND CHEROKEE SRT Owners Manual

The radio uses the following limits for file systems:
²Maximum number of directory levels: 8
²Maximum number of files: 255
²Maximum number of folders: 100
²Maximum number of characters in file/folder names:
²Level 1: 12 (including a separator9.9and a
3-character extension)
²Level 2: 31 (including a separator9.9and a
3-character extension)
Multisession disc formats are supported by the radio.
Multisession discs may contain combinations of normal
CD audio tracks and computer files (including MP3/
WMA files). Discs created with an option such as9keep
disc open after writing9are most likely multisession
discs. The use of multisession for CD audio or MP3/
WMA playback may result in longer disc loading times.If a disc contains multi formats, such as CD audio and
mp3/wma tracks, the radio will only play the mp3/wma
tracks on that disc.
Supported MP3/WMA File Formats
The radio will recognize only files with the *.MP3/WMA
extension as MP3/WMA files. Non-MP3/WMA files
named with the *.MP3/WMA extension may cause play-
back problems. The radio is designed to recognize the file
as an invalid MP3/WMA and will not play the file.
When using the MP3/WMA encoder to compress audio
data to an MP3/WMA file, the bit rate and sampling
frequencies in the following table are supported. In
addition, variable bit rates (VBR) are also supported. The
majority of MP3/WMA files use a 44.1 kHz sampling rate
and a 192, 160, 128, 96 or VBR bit rates.
208 UNDERSTANDING YOUR INSTRUMENT PANEL

MPEG Specifi-
cationSampling Fre-
quency (kHz)Bit rate (kbps)
MPEG-1 Audio
Layer 348, 44.1, 32320, 256, 224, 192,
160, 128, 112, 96,
80, 64, 56, 48
MPEG-2 Audio
Layer 324, 22.05, 16160, 128, 144, 112,
96, 80, 64, 56, 48
WMA Specifi-
cationSampling Fre-
quency (kHz)Bit Rate (kbps)
WMA 44.1 and 4848, 64, 96, 128,
160, 192 VBR
ID3 Tag information for artist, song title, and album title
are supported for version 1 ID3 tags. ID3 version 2 is not
supported by the radios.
Playlist files are not supported. MP3 Pro files are not
supported.
Playback of MP3/WMA Files
When a medium containing MP3/WMA data is loaded,
the radio checks all files on the medium. If the medium
contains a lot of folders or files, the radio will take more
time to start playing the MP3/WMA files.
Loading times for playback of MP3/WMA files may be
affected by the following:
²Media - CD-RW media may take longer to load than
CD-R media
²Medium formats - Multisession discs may take longer
to load than non-multisession discs
²Number of files and folders - Loading times will
increase with more files and folders
To increase the speed of disc loading, it is recommended
to use CD-R media and single-session discs. To create a
single-session disc, enable the Disc at Once option before
writing to the disc.
UNDERSTANDING YOUR INSTRUMENT PANEL 209
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LIST Button (DISC Mode for MP3/WMA Play)
Pressing the LIST button will bring up a list of all folders
on the disc. Scrolling up or down the list is done by
turning the TUNE control knob. Selecting a folder by
pressing the TUNE control knob will begin playing the
files contained in that folder (or the next folder in
sequence if the selection does not contain playable files).
The folder list will time out after 5 seconds.
INFO Button (DISC Mode for MP3/WMA Play)
Pressing the INFO button repeatedly will scroll through
the following TAG information: Song Title, Artist, File
Name, and Folder Name (if available).
Press the INFO button once more to return to9elapsed
time9priority mode.
Press and hold the INFO button for 3 seconds or more
and radio will display song titles for each file.Press and hold the INFO button again for 3 seconds to
return to9elapsed time9display.
Operation Instructions - Auxiliary Mode
The auxiliary (AUX) jack is an audio input jack, which
allows the user to plug in a portable device such as an
MP3/WMA player, cassette player, or microphone and
utilize the vehicle's audio system to amplify the source
and play through the vehicle speakers.
Pushing the AUX button will change the mode to auxil-
iary device if the AUX jack is connected.
NOTE:The AUX device must be turned on and the
device's volume set to proper level. If the AUX audio is
not loud enough, turn the device's volume up. If the AUX
audio sounds distorted, turn the device's volume down.
SEEK Button (Auxiliary Mode)
No function.
210 UNDERSTANDING YOUR INSTRUMENT PANEL

SCAN Button (Auxiliary Mode)
No function.
EJECT Button (Auxiliary Mode)
No function.
TIME Button (Auxiliary Mode)
Press this button to change the display from elapsed
playing time to time of day. The time of day will display
for 5 seconds.
RW/FF (Auxiliary Mode)
No function.
SET Button (Auxiliary Mode)
No function.
Operating Instructions - Hands Free Phone
(UConnectŸ) (If Equipped)
Refer to ªHands-Free Communication (UConnectŸ)º in
Section 3 of this manual.
Operating Instructions - Satellite Radio Mode (If
Equipped)
Refer to ªSatellite Radioº in this section.
Operating Instructions - Video Entertainment
System (VESt) (If Equipped)
Refer to separate ªVideo Entertainment System (VESt)
Guide.º
Dolby
Manufactured under license from Dolby Laboratories.
9Dolby9and the double-D symbol are trademarks of
Dolby Laboratories.
UNDERSTANDING YOUR INSTRUMENT PANEL 211
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Macrovision
This product incorporates copyright protection technol-
ogy that is protected by U.S. patents and other intellec-
tual property rights. Use of this copyright protection
technology must be authorized by Macrovision, and is
intended for home and other limited viewing uses only
unless otherwise authorized by Macrovision. Reverse
engineering or disassembly is prohibited
DTS
9DTS9and9DTS 2.09are trademarks of Digital Theater
Systems, Inc.
SALES CODE REN Ð MULTIMEDIA SYSTEM Ð IF
EQUIPPED
NOTE:The sales code is located on the lower right side
of the unit's faceplate.The REN multimedia system contains a radio, CD/DVD
player, USB port, a 20 gigabyte Hard Drive (HDD), and a
ªJukeBoxº (virtual CD changer). Sirius Satellite Radio is
optional. The 6.5-inch touch screen allows for easy menu
selection.
A 20 gigabyte Hard Drive (HDD) allows uploads of
music and photos from CDs or through the USB port.
While the Gracenote database finds the artist, track, and
title for the music.
An auxiliary input jack permits passengers to listen to a
portable MP3 player through the vehicle's speakers. For
vehicles equipped with the Vehicle Entertainment System
(VES), separate audio outputs allow passengers to listen
to the car speakers while different audio tracks play
through the system's wireless headphones. This means
rear seat passengers can watch a DVD on the optional
rear-seat entertainment system while the driver and front
seat passenger listen to the radio.
212 UNDERSTANDING YOUR INSTRUMENT PANEL

Other special features include direct tune, music type
selections, easy store presets, backup camera display for
vehicles equipped with a backup camera, and on some
models a dual display screen operation. Refer to your
Radio Specific User's Manual for detailed operating
instructions.
Operating Instructions Ð Satellite Radio (If
Equipped)
Refer to your Radio Specific User's Manual for detailed
operating instructions.
Operating Instructions Ð Hands-Free
Communication (UConnectŸ) (If Equipped)
Refer to ªHands-Free Communication (UConnectŸ)º in
Section 3 of this manual for detailed operating instruc-
tions.
Clock Setting Procedure
Setting the Clock
1. Turn on the system.
2. Touch the screen where the time is displayed. The
clock setting menu will appear on the screen.
3. To move the hour forward, touch the screen where the
word ªHourº with the arrow pointing upward is dis-
played. To move the hour backward, touch the screen
where the word ªHourº with the arrow pointing down-
ward is displayed.
4. To move the minute forward, touch the screen where
the word ªMinº with the arrow pointing upward is
displayed. To move the minute backward, touch the
screen where the word ªMinº with the arrow pointing
downward is displayed.
5. To save the new time setting, touch the screen where
the word ªSaveº is displayed.
UNDERSTANDING YOUR INSTRUMENT PANEL 213
4

Changing Daylight Savings Time
When selected, this feature will display the time of day in
daylight savings time. Proceed as follows to change the
current setting:
1. Turn on the system.
2. Touch the screen where the time is displayed. The
clock setting menu will appear on the screen.
3. When this feature is on, a check mark will appear in
the box next to the words ªDaylight Savings.º Touch the
screen where the words ªDaylight Savingsº are dis-
played to change the current setting.
Show Time if Radio is Off
When selected, this feature will display the time of day
on the touch screen when the system is turned off.
Proceed as follows to change the current setting:
1. Turn on the system.2. Touch the screen where the time is displayed. The
clock setting menu will appear on the screen.
3. When this feature is on, a check mark will appear in
the box next to the words ªShow Time if Radio is Off.º
Touch the screen where the words ªShow Time if Radio is
Offº are displayed to change the current setting.
Changing the Time Zone
1. Turn on the system.
2. Touch the screen where the time is displayed. The
clock setting menu will appear on the screen.
3. Touch the screen where the words ªSet Time Zoneº are
displayed. The time zone selection menu will appear on
the screen.
4. Select a time zone by touching the screen where your
selection appears. If you do not see a time zone that you
214 UNDERSTANDING YOUR INSTRUMENT PANEL

want to select, touch the screen where the word ªPageº is
displayed to view additional time zones in the menu.
5. Touch the screen where the word ªSaveº is displayed.
SALES CODE RER Ð AM/FM/CD/DVD RADIO
WITH NAVIGATION SYSTEM Ð IF EQUIPPED
NOTE:The radio sales code is located on the lower right
side of your radio faceplate.
Satellite Navigation Radio with CD Player with MP3
Capability (RER) - combines a Global-Positioning
System-based navigation system with an integrated color
screen to provide maps, turn identification, selection
menus, and instructions for selecting a variety of desti-
nations and routes.
This radio has a hard drive. CD's can be ripped to the
hard drive, and the map data comes loaded on the hard
drive. Refer to your ªNavigation User's Manualº for
detailed operating instructions.
Operating Instructions Ð Satellite Radio
Refer to your ªNavigation User's Manualº for detailed
operating instructions.
Clock Setting Procedure
The GPS receiver used in this system is synchronized to
the time data being transmitted by the GPS satellite. The
satellites' clock is Greenwich Mean Time (GMT). This is
the worldwide standard for time. This makes the sys-
tem's clock very accurate once the appropriate time zone
and daylight savings information is set.
To Manually Set the Clock
1. Turn the ignition switch to the ON or ACC position.
2. If the radio is off, turn it on by pressing the ON/OFF
Volume radio knob.
3. Press theTimesoft key on the lower left side of the
face of the radio.
UNDERSTANDING YOUR INSTRUMENT PANEL 215
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