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A4 Mk3

Vehicle electrics > Communication > Infotainment > MMI infotainment system > Connectors for MMI (from week 45/08 onwards) > MMI maximum equipment

MMI maximum equipment
MMI maximum equipment
   
Control unit 1 for information electronics -J794-
1 - Connection (GSM) from radio, telephone and navigation system aerial -R52- (roof aerial)
2 - Connection block with four multi-pin connectors
3 - MOST bus
4 - FBAS input from TV tuner -R78-
5 - Multi-pin connector, 4-pin (T4am) to display unit for front information display and operating unit control unit -J685-
6 - Multi-pin connector, 4-pin (T4ap) to connection for external audio sources -R199-/internet access control unit -J666- (from model year 2013 onwards)
7 - Not used
8 - GPS connection from radio, telephone and navigation system aerial -R52- (roof aerial)
  Note
Contacts which are not listed are not used.
2 - Connection block with four multi-pin connectors
  A91-11808
A - Multi-pin connector, 8-pin (T8ah)
1 - NF mute (low frequency) from pre-fitted components for mobile phone installation
2 - Voltage supply to multimedia system operating unit -E380-
3 - Wake-up to multimedia system operating unit -E380-
4 - Not used
5 - Switch-on signal to aerial amplifier for mobile telephone -R86-
6 - Res MU to multimedia system operating unit -E380-
7 - Open circuit diagnostic lead
  A91-11788
B - Multi-pin connector, 12-pin (T12x)
Left-hand drive vehicle
2 - Microphone input (+) from microphone unit in front roof module -R164- (front right microphone -R141-)
3 - Microphone input (–) from microphone unit in front roof module -R164- (front right microphone -R141-)
5 - FBAS wire (-) from reversing camera system control unit -J772-
8 - Microphone input (+) from microphone unit in front roof module -R164- (front left microphone -R140-)
9 - Microphone input (-) from microphone unit in front roof module -R164- (front left microphone -R140-)
11 - FBAS wire (+) from reversing camera system control unit -J772-
Right-hand drive vehicle
2 - Microphone input (+) from microphone unit in front roof module -R164- (front left microphone -R140-)
3 - Microphone input (-) from microphone unit in front roof module -R164- (front left microphone -R140-)
5 - FBAS wire (-) from reversing camera system control unit -J772-
8 - Microphone input (+) from microphone unit in front roof module -R164- (front right microphone -R141-)
9 - Microphone input (–) from microphone unit in front roof module -R164- (front right microphone -R141-)
11 - FBAS wire (+) from reversing camera system control unit -J772-
  A91-11788
C - Multi-pin connector, 12-pin (T12y)
All pins are connected to the connection for external audio sources -R199-.
1 - NF in, earth (low frequency)
2 - NF in, right-side (low frequency)
3 - USB (+5 V) - not with internet access control unit -J666- (from model year 2013 onwards)
4 - USB (earth)
5 - Not used
6 - Detect - not with internet access control unit -J666- (from model year 2013 onwards)
7 - NF in, left-side (low frequency)
8 - NF in, screen earth (low frequency)
9 - FBAS wire (+)
10 - FBAS wire (–)
11 - iPod data
12 - iPod data
The following pins are also connected to the internet access control unit -J666- (from model year 2013 onwards).
3 - USB (+5 V)
4 - USB (earth)
6 - Detect
  A91-11788
D - Multi-pin connector, 8-pin (T16q)
9 - Switch-on signal to telephone bracket -R126-
10 - Data from multimedia system operating unit -E380-
11 - Data to multimedia system operating unit -E380-
12 - Terminal 31
13 - DIAG signal from telephone bracket -R126-
14 - Res BT from multimedia system operating unit -E380-
15 - Terminal 30
16 - Earth to multimedia system operating unit -E380-
  A91-11788
3 - MOST bus
1 - Input
2 - Output
  A91-11851
5 - Multi-pin connector, 4-pin (T4am)
All pins are connected to the display unit for front information display and operating unit control unit -J685-.
1 - LVDS (–)
2 - LIN
3 - LVDS (+)
4 - Earth
  A91-11087
6 - Multi-pin connector, 4-pin (T4ap)
All pins are connected to the connection for external audio sources -R199-/internet access control unit -J666- (from model year 2013 onwards).
1 - D (+)
2 - iPod detected
3 - D (–)
4 - Earth
  A91-11087

Vehicle electrics > Communication > Infotainment > MMI infotainment system > Connectors for MMI (from week 45/08 onwards) > MMI maximum equipment

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