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AUDI A3 2004 – Radio sound systems, Radio Chorus, Radio Concert, Radio Symphony . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 2004 - Fuses



Wiring Diagram  AUDI A3 2004 - Fuses https://portal-diagnostov.com/license.html
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DIgnition/starter switch
RRadio
S5Fuse in fuse box/relay plate
S10Fuse in fuse box/relay plate
S237Fuse in fuse box
S242Fuse in fuse box
T88-pin connector, on radio
T10k10-pin connector, red, on radio
   45 Earth point, behind dash panel - centre
   255 Earth connection -1-, in radio wiring harness
   A2 Positive (+) connection (15), in dash panel wiring harness
   A21 Connection (86s), in dash panel wiring harness
   A46 Positive (+) connection (30 - from radio), in dash panel wiring harness
   B135 Connection -1- (15a), in interior wiring harness
*From November 2001 onwards
**As of November 2001 no longer fitted
***Applies to Bose sound system only
****Applies to Bose sound system only - from model year 2002
*****As of model year 2002 no longer fitted

Wiring Diagram AUDI A3 2004 - Auto-check system - combi-processor in dash panel insert



Wiring Diagram  AUDI A3 2004 - Auto-check system - combi-processor in dash panel insert https://portal-diagnostov.com/license.html
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J189Auto-check system
J218Combi-processor in dash panel insert
RRadio
T88-pin connector, on radio
T10k10-pin connector, red, on radio
T1616-pin connector, black, centre console compartment (diagnostic connector)
T20a20-pin connector, black, on radio
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
T32b32-pin connector, grey, on dash panel insert
   A76 Connection (diagnosis wire K), in dash panel wiring harness
   A146 Connection (convenience CAN bus, high), in dash panel wiring harness
   A147 Connection (convenience CAN bus, low), in dash panel wiring harness
   B116 Connection (58d), in interior wiring harness
   B145 Positive (+) connection (58b), in interior wiring harness
*Provision for radio only
**As of model year 2002 no longer fitted
***From model year 2002 onwards, only applies to models without driver information system

Wiring Diagram AUDI A3 2004 - Auto-check system and multi-function steering wheel



Wiring Diagram  AUDI A3 2004 - Auto-check system and multi-function steering wheel https://portal-diagnostov.com/license.html
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J189Auto-check system
J453Multi-function steering wheel control unit
RRadio
T1Single connector, brown, on radio
T88-pin connector, on radio
T1818-pin connector, on multi-function steering wheel control unit
T20a20-pin connector, black, on radio
T32b32-pin connector, grey, on dash panel insert
V94Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness
*As of model year 2002 no longer fitted
**With multi-function steering wheel, only applies to radio Symphony from model year 2001 onwards
***Anti-theft alarm system, from November 2001 onwards
****Anti-theft alarm system, as of November 2001 no longer fitted

Wiring Diagram AUDI A3 2004 - Radio muting



Wiring Diagram  AUDI A3 2004 - Radio muting https://portal-diagnostov.com/license.html
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J401Navigation system with CD drive control unit
J526Telephone/telematics control unit
RRadio
R36Telephone transmitter and receiver unit
T10ae10-pin connector, on telephone/telematics control unit
T10k10-pin connector, red, on radio
T20b20-pin connector, black, on navigation control unit
T4646-pin connector, on telephone/telematics control unit
   A129 Connection (muting), in dash panel wiring harness
   V49 Connection (low frequency, NF +), in communication wiring harness
   V50 Connection (low frequency, NF -), in communication wiring harness
*Models with navigation system 'NS Low'
**Models with telephone, as of model year 2002 no longer fitted
***Models with telephone/telematics
****Models with telephone, from model year 2002 onwards

Wiring Diagram AUDI A3 2004 - CD changer



Wiring Diagram  AUDI A3 2004 - CD changer https://portal-diagnostov.com/license.html
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RRadio
R41CD changer
T20a20-pin connector, black, on radio
   255 Earth connection -1-, in radio wiring harness
   V14 Connection (screening), in CD changer wiring harness

Wiring Diagram AUDI A3 2004 - Front and rear loudspeakers



Wiring Diagram  AUDI A3 2004 - Front and rear loudspeakers https://portal-diagnostov.com/license.html
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RRadio
R15Bass loudspeaker, rear left
R17Bass loudspeaker, rear right
R21Bass loudspeaker, front left
R23Bass loudspeaker, front right
R26Middle-high tone loudspeaker, front left
R27Middle-high tone loudspeaker, front right
R34Middle-treble tone loudspeaker, rear left
R35Middle-treble tone loudspeaker, rear right
T2x2-pin connector, black, on loudspeaker, rear left
T2y2-pin connector, black, on loudspeaker, rear right
T5d5-pin connector, black, in driver's door
T5e5-pin connector, black, in front passenger's door
T8a8-pin connector, brown, on radio
T10q10-pin connector, green, connector carrier, A pillar, left
T10r10-pin connector, green, connector carrier, A pillar, right
*Only applies to passive loudspeakers

Wiring Diagram AUDI A3 2004 - Rear active loudspeakers



Wiring Diagram  AUDI A3 2004 - Rear active loudspeakers https://portal-diagnostov.com/license.html
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RRadio
R15Bass loudspeaker, rear left
R17Bass loudspeaker, rear right
R34Middle-treble tone loudspeaker, rear left
R35Middle-treble tone loudspeaker, rear right
R44Amplifier with bass loudspeaker (luggage compartment, left)
T2x2-pin connector, black, on loudspeaker, rear left
T2y2-pin connector, black, on loudspeaker, rear right
T10t10-pin connector, red, in luggage compartment, left
   255 Earth connection -1-, in radio wiring harness

Wiring Diagram AUDI A3 2004 - Amplifier - bass loudspeaker on models with Bose sound system



Wiring Diagram  AUDI A3 2004 - Amplifier - bass loudspeaker on models with Bose sound system https://portal-diagnostov.com/license.html
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RRadio
R12Amplifier
R39Telephone/navigation systems loudspeaker
R44Amplifier with bass loudspeaker (luggage compartment, left)
T8a8-pin connector, brown, on radio
T20a20-pin connector, black, on radio
   255 Earth connection -1-, in radio wiring harness
   V3 Connection (low frequency, NF), in rear loudspeaker wiring harness
*Only applies to Bose sound system with telephone, as of November 2001 no longer fitted

Wiring Diagram AUDI A3 2004 - Amplifier on models with Bose sound system



Wiring Diagram  AUDI A3 2004 - Amplifier on models with Bose sound system https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
RRadio
R12Amplifier
R21Bass loudspeaker, front left
R23Bass loudspeaker, front right
R26Middle-high tone loudspeaker, front left
R27Middle-high tone loudspeaker, front right
R34Middle-treble tone loudspeaker, rear left
R35Middle-treble tone loudspeaker, rear right
T2x2-pin connector, black, on loudspeaker, rear left
T2y2-pin connector, black, on loudspeaker, rear right
T5d5-pin connector, black, in driver's door
T5e5-pin connector, black, in front passenger's door
T10q10-pin connector, green, connector carrier, A pillar, left
T10r10-pin connector, green, connector carrier, A pillar, right

Wiring Diagram AUDI A3 2004 - Roof aerial connection for radio Chorus - Concert - Symphony - on models with and without telephone - telematics or navigation system and auxiliary heater



Wiring Diagram  AUDI A3 2004 - Roof aerial connection for radio Chorus - Concert - Symphony - on models with and without telephone - telematics or navigation system and auxiliary heater https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
J401Navigation system with CD drive control unit
J526Telephone/telematics control unit
RRadio
R36Telephone transmitter and receiver unit
R52Radio/telephone/navigation aerial (GPS)
R86Aerial amplifier, mobile telephone
R64Auxiliary heating radio wave receiver
R87Aerial filter
*Applies to radio systems on models without telephone, telematics and auxiliary heater
**Applies to radio systems on models with telephone, telematics or navigation system
***Only models additionally equipped with auxiliary heater

Wiring Diagram AUDI A3 2004 - Roof aerial connection for radio Chorus - Concert - Symphony - on models with auxiliary heater and telephone - telematics and navigation system



Wiring Diagram  AUDI A3 2004 - Roof aerial connection for radio Chorus - Concert - Symphony - on models with auxiliary heater and telephone - telematics and navigation system https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
J401Navigation system with CD drive control unit
J526Telephone/telematics control unit
RRadio
R36Telephone transmitter and receiver unit
R52Radio/telephone/navigation aerial (GPS)
R64Auxiliary heating radio wave receiver
R86Aerial amplifier, mobile telephone
R87Aerial filter
*Only models additionally equipped with auxiliary heater
**Applies to radio systems on models with telephone, telematics and navigation system

Wiring Diagram AUDI A3 2004 - Aerials for radio Concert - Symphony with rear window aerials and aerial selection control unit



Wiring Diagram  AUDI A3 2004 - Aerials for radio Concert - Symphony with rear window aerials and aerial selection control unit https://portal-diagnostov.com/license.html
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J515Aerial selection control unit
RRadio
R1Aerial connection
R24Aerial amplifier
R111Aerial amplifier -2-
R112Aerial amplifier -3-
Z24Heated rear window with window aerial

Wiring Diagram AUDI A3 2004 - Aerials for radio Concert - Symphony with roof aerial and aerial selection control unit



Wiring Diagram  AUDI A3 2004 - Aerials for radio Concert - Symphony with roof aerial and aerial selection control unit https://portal-diagnostov.com/license.html
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J515Aerial selection control unit
R11Aerial
R18Frequency switch, left
R19Frequency switch, right
R113Aerial amplifier -4-
E15Heated rear window switch
E87Control and display unit for air conditioner/Climatronic
Z1Heated rear window
Z24Heated rear window with window aerial
   255 Earth connection -1-, in radio wiring harness
   B248 Connection -2- (heated rear window), in interior wiring harness