Audi Workshop Service and Repair Manuals > A4 Mk3 > Vehicle electrics | Communication | Infotainment | MMI infotainment system | Connectors for MMI (up to week 44/08)

Connectors for MMI (from week 45/08 onwards) > < Connectors for MMI basic plus

Connectors for MMI (up to week 44/08)

Connectors for MMI (up to week 44/08)

Control unit for front display and information control panel -J523-

A -	Multi-pin connector, 10-pin (Japan nav)

B -	Multi-pin connector, 20-pin (T20b) to multimedia system operating unit -E380-

C -

MOST bus

D -	Multi-pin connector, 22-pin (T22) to display unit for front information display and operating unit control unit -J685-

E -	FBAS input from TV tuner -R78- / reversing camera system control unit -J772-

Note

Contacts which are not listed are not used.

A91-10544

B - Multi-pin connector, 20-pin (T20b)

1 -	Terminal 30

2 -	Terminal 31

3 -	Open circuit diagnostic lead

6 -	Wake-up to multimedia system operating unit -E380-

7 -	Voltage supply to multimedia system operating unit -E380-

8 -	Earth to multimedia system operating unit -E380-

13 -	RESET from multimedia system operating unit -E380-

14 -	RESET to multimedia system operating unit -E380-

15 -	Data to multimedia system operating unit -E380-

16 -	Data from multimedia system operating unit -E380-

20 -	NF mute (low frequency) from pre-fitted components for mobile phone installation

A91-10381

C - MOST bus

1 -

Input

2 -

Output

A91-11851

Vehicle electrics
Communication / Infotainment
MMI infotainment system
Connectors for MMI (up to week 44/08)

Connectors for MMI (from week 45/08 onwards) > < Connectors for MMI basic plus