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

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4 -
Amplifier -R12- (for rear loudspeakers or
BOSE power amplifier only with
"BOSE sound system")
In right rear luggage compartment behind
side trim Removing and installing amplifier for rear
loudspeakers Page 91
-64

Removing and installing BOSE power
amplifier Page 91
-66

5 -
Right rear window antenna
With FM-antenna 3
6 -
Bass Loudspeaker -R-100- In right rear luggage compartment behind
side trim Removing and installing Page 91
-62
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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12 -
Rear Bass Speakers -R-15, -R-17
In lower rear door trimRemoving and installing Page 91
-57
13 -
Rear Midrange Speakers -R-34, -R-35
In upper rear door trimRemoving and installing Page 91
-58
14 -
Front Bass Speakers -R-21, -R-23
In lower front door trimRemoving and installing Page 91
-54
15 -
Front Midrange Speakers -R-26, -R-27
In upper front door trimRemoving and installing Page 91
-55
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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6 -
Rear Midrange Speakers
In upper rear door trim
7 -
Amplifier -R12- (for rear loudspeakers) In right rear luggage compartment behind
side trim
8 -
Bass Loudspeaker Below rear shelf
9 -
Center Mid/High Range Loudspeaker In instrument panel
10 -
CD Changer Unit -R41- OptionalIn glove compartment
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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7 -
Rear Bass Speakers
In lower rear door trim
8 -
Rear Midrange Speakers In upper rear door trim
9 -
Amplifier -R12- (for rear loudspeakers) In right rear luggage compartment behind
side trim
10 -
Bass Loudspeaker In right rear luggage compartment behind
side trim
11 -
Center Mid/High Range Loudspeaker In instrument panel
12 -
CD Changer Unit -R41- OptionalIn glove compartment
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", 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 power amplifier
7 - 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

Downloaded from www.Manualslib.com manuals search engine 17 - Switched positive for CD changer
18 - Ground (GND) Line output (CD changer)
19 - Line output - left (CD changer)
20 - Line output - right (CD changer)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

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Multi-pin connector II, 8-pin, brown
3 - Loudspeaker +, right front
4 - Loudspeaker -, right front
5 - Loudspeaker + left front
6 - Loudspeaker - left front

Multi-pin connector III, 8-pin, black
2 - Anti-theft signal
3 - Data Link Connector (DLC)
7 - Supply voltage B+ (terminal 30)
8 - Ground (GND) (terminal 31)
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication