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Radio/Navigation System (RNS-E) ● Only US equipment from May 2008
Audi A3 Wiring Diagram No. 92 / 1 Edition 04/2009
Note:
Information for
Relay and fuse arrangements Connector arrangements Control Modules and Relays Ground Connections
Page 1 of 15
Audi A3 Wiring Diagram No. 92 / 2
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Fuses (on fuse panel) J402 -
Navigation System Operating Electronics Control Module
SB1 - Fuse 1 (on fuse panel B)SB3 - Fuse 3 (on fuse panel B)SB8 - Fuse 8 (on fuse panel B)SB19 - Fuse 19 (on fuse panel B)SC9 - Fuse 9 (on fuse panel C)SC10 - Fuse 10 (on fuse panel C)T12l - 12-Pin Connector, blue (Connector B)T16g - 16-Pin Connector, black (Connector D)T40 -
40-Pin Connector, black, on electronics box engine compartment (Connector J)
376 - Ground Connection 11 (in main wiring harness)
610 - Ground Connection (Audio) (under center console, front)
V37 -
Plus Connection (30) (in communications wiring harness)
* - Not applicable from May 2009*** - Only models with BOSE system**** - Applicable from May 2009# - Only models with electronics box Low## - Only models with electronics box High
Page 2 of 15
Audi A3 Wiring Diagram No. 92 / 3
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
External Audio Source Connector J402 -
Navigation System Operating Electronics Control Module
R199 - External Audio Source ConnectorT4ar - 4-Pin ConnectorT12y - 12-Pin Connector, black (Connector A)T32d - 32-Pin Connector, grey (Connector E)
376 - Ground Connection 11 (in main wiring harness)
* - Only models with AUX-IN Socket** - Only models with Audi Music Interface (AMI)**** - Applicable from May 2009
Page 3 of 15
Audi A3 Wiring Diagram No. 92 / 4
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Front Speaker with BOSE system J402 -
Navigation System Operating Electronics Control Module
R12 - AmplifierR20 - Left Front Treble SpeakerR22 - Right Front Treble SpeakerR101 - Left Front Mid-Bass SpeakerR102 - Right Front Mid-Bass SpeakerR158 - Center Midrange SpeakerT8d - 8-Pin Connector, black, behind center consoleT20 - 20-Pin Connector, black, door A-pillar, leftT20a - 20-Pin Connector, black, door A-pillar, right
Page 4 of 15
Audi A3 Wiring Diagram No. 92 / 5
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Rear Speaker with BOSE system J402 -
Navigation System Operating Electronics Control Module
R12 - AmplifierR14 - Left Rear Treble SpeakerR16 - Right Rear Treble SpeakerR105 - Left Rear Midrange SpeakerR106 - Right Rear Midrange SpeakerT2ac -
Double Connector, black, behind rear left side panel trim
T2ad -
Double Connector, black, behind rear right side panel trim
T2ae - Double Connector, black, in rear left doorT2af - Double Connector, black, in rear right doorT20l - 20-Pin Connector, black, door B-pillar, leftT20m - 20-Pin Connector, black, door B-pillar, right
Page 5 of 15
Audi A3 Wiring Diagram No. 92 / 6
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Inside Microphone, Bass Speaker with BOSE system J402 -
Navigation System Operating Electronics Control Module
R12 - AmplifierR74 - Inside MicrophoneR100 - Bass SpeakerSB18 - Fuse 18 (on fuse panel B)T12m -
12-Pin Connector, black (Connector C) (connector locking green)
T16g - 16-Pin Connector, black (Connector D)T40 -
40-Pin Connector, black, on electronics box engine compartment (Connector J)
133 - Ground Connection (in speaker wiring harness)
376 - Ground Connection 11 (in main wiring harness)
610 - Ground Connection (Audio) (under center console, front)
B327 - Plus Connection 13 (30a) (in main wiring harness)
* - Not applicable from May 2009**** - Applicable from May 2009
Page 6 of 15
Audi A3 Wiring Diagram No. 92 / 7
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Front Speaker with Amplifier J402 -
Navigation System Operating Electronics Control Module
R20 - Left Front Treble SpeakerR22 - Right Front Treble SpeakerR101 - Left Front Mid-Bass SpeakerR102 - Right Front Mid-Bass SpeakerR158 - Center Midrange SpeakerT8d - 8-Pin Connector, black, behind center consoleT8p - 8-Pin Connector, brown (Connector A)T20 - 20-Pin Connector, black, door A-pillar, leftT20a - 20-Pin Connector, black, door A-pillar, right
B469 - Connection 5 (in main wiring harness)
B470 - Connection 6 (in main wiring harness)
B471 - Connection 7 (in main wiring harness)
B472 - Connection 8 (in main wiring harness)
Page 7 of 15
Audi A3 Wiring Diagram No. 92 / 8
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Bass Speakers Amplifier, in luggage compartment, left, Rear Speaker J402 -
Navigation System Operating Electronics Control Module
R14 - Left Rear Treble SpeakerR16 - Right Rear Treble SpeakerR44 -
Bass Speakers Amplifier, in luggage compartment, left
R105 - Left Rear Midrange SpeakerR106 - Right Rear Midrange SpeakerT2ac -
Double Connector, black, behind rear left side panel trim
T2ad -
Double Connector, black, behind rear right side panel trim
T2ae - Double Connector, black, in rear left doorT2af - Double Connector, black, in rear right doorT20l - 20-Pin Connector, black, door B-pillar, leftT20m - 20-Pin Connector, black, door B-pillar, right
Page 8 of 15
Audi A3 Wiring Diagram No. 92 / 9
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Bass Speakers Amplifier, in luggage compartment, left J402 -
Navigation System Operating Electronics Control Module
R44 -
Bass Speakers Amplifier, in luggage compartment, left
SB18 - Fuse 18 (on fuse panel B)T12m -
12-Pin Connector, black (Connector C) (connector locking green)
T16g - 16-Pin Connector, black (Connector D)T40 -
40-Pin Connector, black, on electronics box engine compartment (Connector J)
133 - Ground Connection (in speaker wiring harness)
376 - Ground Connection 11 (in main wiring harness)
662 - Ground Connection (on left rear side panel)
B327 - Plus Connection 13 (30a) (in main wiring harness)
B415 - Infotainment CAN-Bus High Connection 1 (in main wiring harness)
B421 - Infotainment CAN-Bus Low Connection 1 (in main wiring harness)
* - Not applicable from May 2009**** - Applicable from May 2009
Page 9 of 15
Audi A3 Wiring Diagram No. 92 / 10
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Data Bus On Board Diagnostic Interface, Telephone Transceiver J402 -
Navigation System Operating Electronics Control Module
J533 - Data Bus On Board Diagnostic InterfaceR36 - Telephone TransceiverT12m -
12-Pin Connector, black (Connector C) (connector locking green)
T20d - 20-Pin Connector, black (Connector A)T54 - 54-Pin Connector, black (Connector A)
376 - Ground Connection 11 (in main wiring harness)
B415 - Infotainment CAN-Bus High Connection 1 (in main wiring harness)
B421 - Infotainment CAN-Bus Low Connection 1 (in main wiring harness)
* - Only models with telephone
Page 10 of 15
Audi A3 Wiring Diagram No. 92 / 11
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Roof Antenna J402 -
Navigation System Operating Electronics Control Module
R11 - AntennaR146 - Satellite RadioSB9 - Fuse 9 (on fuse panel B)SB20 - Fuse 20 (on fuse panel B)T2av - Double Connector, black, on right A-pillarT8t -
8-Pin Connector, black, in luggage compartment, left rear (Connector B)
T8u - 8-Pin Connector, black (Connector A)T40 -
40-Pin Connector, black, on electronics box engine compartment (Connector J)
376 - Ground Connection 11 (in main wiring harness)
662 - Ground Connection (on left rear side panel)
B415 - Infotainment CAN-Bus High Connection 1 (in main wiring harness)
B421 - Infotainment CAN-Bus Low Connection 1 (in main wiring harness)
V37 -
Plus Connection (30) (in communications wiring harness)
* - Not applicable from May 2009** - Only models with telephone*** - Only models with satellite radio**** - Applicable from May 2009***** - Only preparation for satellite radio# -
Only models with electronics box Low � Component Locations
## - Only models with electronics box High � Component Locations
Page 11 of 15
Audi A3 Wiring Diagram No. 92 / 12
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
CD Changer, iPod Baseplate, USB Connection Baseplate, with Satellite Radio J402 -
Navigation System Operating Electronics Control Module
R41 - CD ChangerR146 - Satellite RadioR192 - iPod BaseplateR193 - USB Connection BaseplateT8t -
8-Pin Connector, black, in luggage compartment, left rear (Connector B)
T12l - 12-Pin Connector, blue (Connector B)
309 - Shielding Ground Connection 1 (in CD changer wiring harness)
310 - Shielding Ground Connection 2 (in CD changer wiring harness)
376 - Ground Connection 11 (in main wiring harness)
662 - Ground Connection (on left rear side panel)
V14 -
Connection (shielding) (in CD-changer wiring harness)
* - Only models without CD Changer or iPod Baseplate or USB Connection Baseplate
** - Only models with CD Changer or iPod Baseplate or USB Connection Baseplate
*** - Only models with satellite radio**** -
Wire colour was modified from brown to black, applicable from May 2009
Page 12 of 15
Audi A3 Wiring Diagram No. 92 / 13
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
CD Changer, iPod Baseplate, USB Connection Baseplate, without Satellite Radio J402 -
Navigation System Operating Electronics Control Module
R41 - CD ChangerR192 - iPod BaseplateR193 - USB Connection BaseplateT8t -
8-Pin Connector, black, in luggage compartment, left rear (Connector B)
T12l - 12-Pin Connector, blue (Connector B)
309 - Shielding Ground Connection 1 (in CD changer wiring harness)
310 - Shielding Ground Connection 2 (in CD changer wiring harness)
376 - Ground Connection 11 (in main wiring harness)
662 - Ground Connection (on left rear side panel)
V14 -
Connection (shielding) (in CD-changer wiring harness)
* - Only models without CD Changer or iPod Baseplate or USB Connection Baseplate
** - Only models with CD Changer or iPod Baseplate or USB Connection Baseplate
*** - Only models without satellite radio**** -
Wire colour was modified from brown to black, applicable from May 2009
Page 13 of 15
Audi A3 Wiring Diagram No. 92 / 14
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Left Antenna Module, Rear Window Antenna 1 J393 - Comfort System Central Control ModuleJ402 -
Navigation System Operating Electronics Control Module
J519 - Vehicle Electrical System Control ModuleR24 - Antenna AmplifierR47 -
Central Locking and Anti-Theft Alarm System Antenna
R108 - Left Antenna ModuleR130 - Rear Window Antenna 1T2h - Double Connector, on C-pillar, rightT4o - 4-Pin Connector, near right C-pillarT18 - 18-Pin Connector, brown (Connector A)T52c - 52-Pin Connector, brown (Connector C)Z24 - Rear Window Defogger with Window Antenna* -
Only models with central locking system or anti-theft alarm system
# - Not applicable from May 2009## - Applicable from May 2009
Page 14 of 15
Audi A3 Wiring Diagram No. 92 / 15
ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = lilacge = yellowor = orangers = pink
Left Antenna Module, Windshield Antenna Suppression Filter C18 - Windshield Antenna Suppression FilterJ9 - Rear Window Defogger RelayJ519 - Vehicle Electrical System Control ModuleR108 - Left Antenna ModuleT8ac - 8-Pin Connector, blackT10d - 10-Pin Connector, black (Connector K)Z1 - Heated Rear WindowZ24 - Rear Window Defogger with Window Antenna
61 - Ground Connection (on left C-pillar)
218 - Ground Connection 1 (in rear lid wiring harness)
Q22 - Connection 1 (in tailgate wiring harness)
Q44 - Connection 2 (in tailgate wiring harness)
* - Not applicable from May 2009** - Applicable from May 2009
Page 15 of 15