AUDI A3 2004 — Mobile phone . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 2004 - Fuses - telephone microphone

D	Ignition/starter switch
E1	Lighting switch
J218	Combi-processor in dash panel insert
J412	Operating electronics control unit, telephone
R38	Telephone microphone
S8	Fuse in fuse box/relay plate
S12	Fuse in fuse box/relay plate
T18a	18-pin connector, mobile phone interface, in centre console
T32	32-pin connector, blue, on dash panel insert
45	Earth point, behind dash panel - centre
278	Earth connection -4-, in interior wiring harness
A1	Positive (+) connection (30a), in dash panel wiring harness
A2	Positive (+) connection (15), in dash panel wiring harness
A27	Connection (speed signal), in dash panel wiring harness
B145	Positive (+) connection (58b), in interior wiring harness

Wiring Diagram AUDI A3 2004 - Voice control system with and without radio

J412	Operating electronics control unit, telephone
R	Radio
R39	Telephone/navigation systems loudspeaker
T8a	8-pin connector, brown, on radio
T10k	10-pin connector, red, on radio
T18a	18-pin connector, mobile phone interface, in centre console
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
*	Voice control system without radio
**	Voice control system with radio, see Current Flow Diagram No. 13
***	Voice control system for radio with Bose sound system, as of November 2001 no longer fitted

Wiring Diagram AUDI A3 2004 - Voice control system with navigation system (RNS-D)

J402	Operating electronics control unit, navigation
J412	Operating electronics control unit, telephone
R39	Telephone/navigation systems loudspeaker
T8	8-pin connector, on radio
T8a	8-pin connector, brown, on radio
T18a	18-pin connector, mobile phone interface, in centre console
T20a	20-pin connector, black, on radio
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
*	Voice control system for navigation system (RNS-D) with Bose sound system, as of November 2001 no longer fitted
**	Voice control system with navigation system (RNS-D), see Current Flow Diagram No. 36

Wiring Diagram AUDI A3 2004 - Voice control system with navigation system 'NS LOW'

R	Radio
R39	Telephone/navigation systems loudspeaker
J401	Navigation system with CD drive control unit
J412	Operating electronics control unit, telephone
T10k	10-pin connector, red, on radio
T18a	18-pin connector, mobile phone interface, in centre console
T20b	20-pin connector, black, on navigation 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
*	Voice control system on models without radio with navigation system 'NS LOW', as of model year 2002 no longer fitted
**	Voice control system with radio and navigation system 'NS LOW'

Wiring Diagram AUDI A3 2004 - Mobile telephone

J412	Operating electronics control unit, telephone
R54	Mobile telephone
*	Without connection

Wiring Diagram AUDI A3 2004 - Mobile telephone - telephone aerial - aerial amplifier for mobile telephone

J412	Operating electronics control unit, telephone
R1	Aerial connection
R54	Mobile telephone
R65	Telephone aerial
R86	Aerial amplifier, mobile telephone
T18a	18-pin connector, mobile phone interface, in centre console
278	Earth connection -4-, in interior wiring harness
*	Without connection
**	Only models with dual band compensor
***	Compensor for D network, as of model year 2002 no longer fitted