1997 AUDI A4 Radio System Workshop Manual

91-7

"Delta" radio with BOSE sound system

Multi-pin connectors I, II, III (on back of radio) terminal assignments
Note:
Terminals which are not listed are vacant/unassigned. 1 - Rear window antenna with antenna amplifier
2 - BOSE amplifier in luggage compartment (left-rear)
3 - Bass speaker in front door trim (bottom)
4 - Mid-range/treble speaker in front door trim (top)
5 - Broad band speaker in rear door trim
6 - Bass speaker in parcel shelf
7 - CD changer (optional) in luggage compartment (left-rear)

20-pin connector I
1 - Line out, left-rear
2 - Line out, right-rear
3 - Low frequency Ground (GND)
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91-8


4 - Line out, left-front
5 - Line out, right-front
6 - Switched positive supply (B+) for BOSE amplifier
7 - BOSE coding
8 - Clock signal
9 - Data signal
10 - Enable signal
12 - USA coding
13 - CD bus data (CD changer)
14 - CD bus clock (CD changer)
15 - Ground (GND) (CD changer)
16 - Positive supply (B+) (continuous)
17 - Switched positive supply (B+) for CD changer
18 - Low frequency Ground (GND) for CD changer
19 - Signal wire for left channel (CD low frequency-L)
20 - Signal wire for right channel (CD low frequency-R)
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91-9


8-pin connector III (black)
1 - Vehicle speed sensor (Gala)
2 - Low frequency mute switch (telephone system)
3 - Terminal 30
4 - Terminal 86s connection for ignition key switched on and off (S-
contact)
5 - Switched positive supply (B+) for antenna amplifier
6 - Illumination (terminal 58d)
7 - Terminal 30
8 - Ground (GND) (terminal 31)
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91-10

Radio system, overview (m.y. 1998 )


"Concert" radio (sedan)

"Concert" radio (Avant) 1 - Rear window antenna with antenna amplifier
2 - Bass speaker in front door trim (bottom)
3 - Mid-range/treble speaker in front door trim (top)
4 - Broad band speaker (active with double amplifier) in parcel shelf (left-
rear)
5 - Broad band speaker (passive) in parcel shelf (right-rear)
6 - CD changer (optional) in luggage compartment (left-rear)

1 - Roof antenna with antenna amplifier
2 - Bass speaker in front door trim (bottom)
3 - Mid-range/treble speaker in front door trim (top)
4 - Broad band speaker (2-way) in rear door trim
5 - Bass speaker (subwoofer) in left-rear of cargo area under side trim
6 - CD changer (optional) in left-rear of cargo area under storage
compartment
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91-11

Multi-pin connectors I, II, III, IV (on back of
radio), terminal assignments

Note:
Terminals which are not listed are
vacant/unassigned.

20-pin connector I
1 - Line out, left-rear
2 - Line out, right-rear
3 - Low frequency Ground (GND)
6 - Switched positive supply (B+) for active speaker (sedan) and/or
subwoofer (Avant)
8 - Clock signal
9 - Data signal
10 - Enable signal
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91-12


8-pin connector II (brown) 13 - Bus data in (CD changer)
14 - Bus data out (CD changer)
15 - Clock (CD changer)
16 - Continuous positive supply (B+)
17 - Switched positive supply (B+) (CD changer)
18 - Low frequency-Ground (GND) (CD changer)
19 - Signal wire for left channel (CD low frequency-L)
20 - Signal wire for right channel (CD low frequency-R)
3 - Speaker line, right-front (+)
4 - Speaker line, right-front (-)
5 - Speaker line, left-front (+)
6 - Speaker line, left-front (-)
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91-13


8-pin connector III (black)
10-pin connector IV (red) 1 - Vehicle speed sensor (Gala)
3 - K-diagnosis
4 - Terminal 86s connection for ignition key switched on and off (S-
contact)
6 - Illumination (terminal 58d)
7 - Terminal 30
8 - Ground (GND) (terminal 31)
1 - Telephone low frequency mute switch
3 - Telephone (low frequency +)
4 - Telephone (low frequency -)
5 - Navigation (low frequency +) (not applicable US/Canada)
6 - Navigation (low frequency -) (not applicable US/Canada)
7 - Navigation control line not (not applicable US/Canada)
9 - Display illumination (terminal 58d)
10 - CD Ground (GND)
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91-14

"Concert" radio with BOSE sound system
(sedan)

"Concert" radio with BOSE sound system (Avant) 1 - Rear window antenna with antenna amplifier
2 - Telephone speaker
3 - BOSE amplifier in luggage compartment (left-rear)
4 - Bass speaker in front door trim (bottom)
5 - Mid-range/treble speaker in front door trim (top)
6 - Broad band speaker in rear door trim
7 - Bass speaker in parcel shelf
8 - CD changer (optional) in luggage compartment (left-rear)

1 - Roof antenna with antenna amplifier
2 - Telephone speaker
3 - BOSE amplifier combined with bass speaker (subwoofer) in cargo
area (left-rear) under side trim
4 - Bass speaker in front door trim (bottom)
5 - Mid-range/treble speaker in front door trim (top)
6 - Broad band speaker in rear door trim
7 - CD changer (optional) in cargo area (left-rear) under storage
compartment
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