2002 AUDI A4 radio

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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

Downloaded from www.Manualslib.com manuals search engine 91-34

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

Downloaded from www.Manualslib.com manuals search engine 91-35


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

Downloaded from www.Manualslib.com manuals search engine 91-36


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

Downloaded from www.Manualslib.com manuals search engine 91-37


7 -
Rear Midrange Speakers
In upper rear door trim
8 -
Rear Bass Speakers In lower rear door trim
9 -
Bass Loudspeaker Under rear parcel shelf
10 -
Center Mid/High Range Loudspeaker In instrument panel
11 -
CD Changer Unit In glove compartment
12 -
Satellite Radio In left rear luggage compartment
13 -
Satellite Tuner Antenna On roofAlso for Telematics and Navigation
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-38


Radio system SDARS with BOSE sound
system (Avant), layout
1 -
Left Antenna Module
In left rear luggage compartment behind
trim
2 -
Left rear window antenna
3 -
Rear window antenna
4 -
Right rear window antenna
5 -
Radio
6 -
BOSE power amplifier In right rear luggage compartment behind
trim
7 -
Front Midrange Speakers In upper front door trim
8 -
Front Bass Speakers In lower front door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-39


9 -
Rear Midrange Speakers
In upper rear door trim
10 -
Rear Bass Speakers In lower rear door trim
11 -
Bass Loudspeaker Under rear parcel shelf
12 -
Center Mid/High Range Loudspeaker In instrument panel
13 -
CD Changer Unit In glove compartment
14 -
Satellite Radio In left rear luggage compartment
15 -
Satellite Tuner Antenna On roofAlso for Telematics and Navigation
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication

Downloaded from www.Manualslib.com manuals search engine 91-40


Communication system with SDARS, layout
1 -
Satellite Radio
In left rear luggage compartment
2 -
Satellite Tuner Antenna on roof
3 -
Antenna splitter (GPS) Only AvantIn left rear luggage compartment behind
trim
4 -
Antenna for Navigation (GPS) Only sedanBehind roof end trim
5 -
Control module for navigation with CD
mechansim In left rear luggage compartment behind
trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication