2001 AUDI A4 manual radio set

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66
In order to improve sound quality, acoustic
curves related to vehicle type are stored in the
concert II and symphony II radios.
The acoustic curves are set in the control unit
coding function of the radio systems.
In addition, the sound settings for the FM, AM
and CD modes are stored separately in the
concert II and symphony II radios. Conse-
quently, the various level controls do not
require resetting each time the driver
changes modes.
Radio chorus II
New functions with respect to the predeces-
sor model include:
– Skip title function
– Scan function
– Dolby noise suppression
in the cassette player as well as
– a sorting function within a radio station
family
in the convenience radio tuner search func-
tion.
Radio concert II
A single speed CD player is integrated in the
concert II radio.
The cassette player has been discontinued.
Radio concert II and symphony II
The improved radio traffic news memory in
the Radio concert II and symphony II allows
the driver to program the time for starting the
two-hour recording of traffic news announce-
ments. Two timers are available, which can be
programmed individually.
Example:
The driver can set the starting time for the
recording of radio traffic news announce-
ments for the drive to work in the morning
and for the drive back in the evening sepa-
rately.
Radio reception is improved in the concert II
and symphony II radios by the use of the
M
ulti
C
ommunication
B
ar (MCB) with inte-
grated aerial diversity.
For further information on the aerial module,
please refer to 72.
Electrical system
SSP254_009
SSP254_007

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67
Radio symphony II
A 6x CD changer as well as a cassette player
are integrated in the symphony II radio.
Searching for alternative frequencies is
speeded up by the use of a second tuner. The
second tuner also allows for Traffic Message
Channel (TMC) evaluation in the background.
For further information, please refer to the
relevant operating instructions.
CAN networking in the new generation of
radios
All three radio versions are connected to the
data bus information system.
Important signals via the data bus informa-
tion system:
SSP254_006
– Ignition on/steering column-
electronics
– Ignition key inserted/steering
column electronics
– Switch illumination/dash panel
insert
– Display illumination/dash panel
insert
– Speed/dash panel insert
– Convenience coding/dash panel
insert
– Vehicle identification/dash
panel insert
– Prompt signal/data bus informa-
tion
– Data bus system information/
dash panel insert
– Time/dash panel insert
– Control signals from multi-func-
tion steering wheel/steering
column electronics– Display functions/dash panel
insert
– Sleep signal/data bus informa-
tion
– TMC data for symphony II/
navigation system
– Convenience coding request/
dash panel insert
Inputs/sourceOutputs/receiver

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70
TELE
RETURN
INFO
NAV
Menu

Within the menu structure of the navigation
system, the driver is able to
– switch the dynamic routing on and off,
– select the source of traffic information,
– manually exclude route sections from the
route planning.
For further information, please refer to the
operating instructions.
Travel Message Channel (TMC)
The TMC is a component of the Radio Data
System (RDS), which is transmitted by the
radio stations.
The information in the TMC includes the loca-
tion, type and duration of traffic hold-ups
reported by the police, automobile associa-
tions and government authorities in a coded
form standard throughout Europe.
The TMC data is not currently transmitted by
all radio stations.
This requires the use of a second tuner in the
radio or in the interface of the Navigation
System Plus.
As only the symphony II radio is equipped
with a second tuner, the use of TMC data for
dynamic routing is only possible with this
version.
Dynamic routing in conjunction with the
chorus II and concert II radios is only possible
by means of the traffic messages via tele-
phone with telematics
®

.
Diagnostics
The navigation system diagnostics is interro-
gated via the L-wire.
Electrical system
SSP254_130
1 Traffic information is available.
Source: Radio
Alternative route Traffic information
now automatic
for route section
for route from hereread
interrogate latest
Settings
Tailback function Back with RETURN