radio AUDI A4 2002 B5 / 1.G Radio System General Information

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Radio systems with Satellite Digital Audio
Radio Service (SDARS) (Avant),
component overview

1 -
CD Changer Unit -R41-
OptionalIn glove compartmentRemoving and installing Page 91
-48
Check wiring Page 91
-50
2 -
Center Mid/High Range Loudspeaker -R-
158
In instrument panelRemoving and installing Page 91
-59
3 -
Radio -R-
In instrument panel, centerRadio "Concert II" Removing and installing
Page 91
-44

Radio "Symphony II" Removing and
installing Page 91
-46

Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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7 -
Satellite Tuner Antenna -R-172-
On roofAlso for Telematics and NavigationRemoving and installing Page 91
-70
8 -
Rear window antenna
With FM-antenna 2
9 -
Satellite Radio -R146- In left rear luggage compartment behind
side trim Removing and installing Page 91
-53
10 -
Left Antenna Module -R-108-
In left rear luggage compartment behind
side trim Removing and installing Page 91
-68
11 -
Left rear window antenna
With AM-antenna and FM-antenna 1
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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Radio systems, layout and terminal
assignments

"Concert II" and "Symphony II" radio system
(Sedan), layout
1 -
Rear window antennas
2 -
Antenna Selection Control Module -J515-
Under rear headliner trim
3 -
Front Bass Speakers In lower front door trim
4 -
Front Midrange Speakers In upper front door trim
5 -
Rear Bass Speakers In lower rear door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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"Concert II" and "Symphony II" radio systems
(Avant), layout
1 -
Antenna Selection Control Module -J515-
In left rear luggage compartment behind
side trim
2 -
Left rear window antenna
3 -
Rear window antenna
4 -
Right rear window antenna
5 -
Front Bass Speakers In lower front door trim
6 -
Front Midrange Speakers In upper front door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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"Concert II" and "Symphony II" radio systems
with "BOSE sound system" (Sedan), layout
1 -
Rear window antennas
2 -
Antenna Selection Control Module -J515-
Under rear headliner trim
3 -
BOSE power amplifier In right rear luggage compartment behind
side trim
4 -
Front Bass Speakers In lower front door trim
5 -
Front Midrange Speakers In upper front door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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"Concert II" and "Symphony II" radio systems
with "BOSE sound system" (Avant), layout
1 -
Left Antenna Module
In left rear luggage compartment behind
side trim
2 -
Left rear window antenna
3 -
Rear window antenna
4 -
Right rear window antenna
5 -
BOSE power amplifier In right rear luggage compartment behind
side trim
6 -
Front Bass Speakers In lower front door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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"Concert II" and "Symphony II" radio systems
with "BOSE sound system", Multi-pin
connector terminal assignments
Note:
Terminals which are not listed are
vacant/unassigned.

Multi-pin connector I, 20-pin - black
1 - Line output - left rear
2 - Line output - right rear
3 - Line output, Ground (GND)
4 - Line output - left front
5 - Line output - right front
6 - Switched positive for BOSE power amplifier7 - CAN Bus - High (Infotainment)
10 - Ground (GND) (CD changer)
12 - CAN Bus - Low (Infotainment)
13 - CD bus data input (CD changer)
14 - CD bus data output (CD changer)
15 - CD clock (CD changer)
16 - Battery positive B+ (CD changer)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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BOSE amplifier, multi-pin connector
assignments

Multi-pin connector, 25-pin
1 - Center mid/high range loudspeaker (+)
2 - Center mid/high range loudspeaker (-)
6 - Line output - Ground (GND) (from Radio)
7 - Line output - right rear (from Radio)
8 - Line output - left rear (from Radio)
9 - Line output - right front (from Radio)
10 - Line output - left front (from Radio)
11 - Ground (GND) (terminal 31)
13 - Battery B+ (terminal 30)
14 - Bass loudspeaker (+)
15 - Bass loudspeaker (-)
16 - Loudspeaker (-) left front
17 - Loudspeaker (+) left front
18 - Loudspeaker (+) right front
19 - Loudspeaker (-) right front
20 - Loudspeaker (+) left rear
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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Multi-pin connector, 32-pin
1 - Battery B+ (terminal 30)
2 - Ground (GND) (terminal 31)
3 - Bass loudspeaker (+)
4 - Loudspeaker (-) left rear
5 - Loudspeaker (+) right rear
6 - Switched positive (from Radio)
7 - Line output - Ground (GND) (from Radio)
13 - Center mid/high range loudspeaker (+)
14 - Center mid/high range loudspeaker (-)
15 - Bass loudspeaker (-)
16 - Loudspeaker (+) left rear
17 - Loudspeaker (-) right rear
19 - Line output - left front (from Radio)
20 - Line output - right front (from Radio)
21 - Line output - left rear (from Radio)
22 - Line output - right rear (from Radio)
26 - Loudspeaker (-) right front
27 - Loudspeaker (+) right front
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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Radio system SDARS with BOSE sound
system (Sedan), layout
1 -
Rear window antennas
2 -
Antenna Selection Control Module -J515-
Under rear headliner trim
3 -
Radio
4 -
BOSE power amplifier In right rear luggage compartment behind
side trim
5 -
Front Midrange Speakers In upper front door trim
6 -
Front Bass Speakers In lower front door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication