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p/n 8T2035186Q, 8R1035186Q, 8T1035186B
This pinout is associated with 3 compatible devices or models. Show them>

 

Pin
Number
Pin
Name
Description
A1   RR+ Right rear speaker (+)
A2   RF+ Right front speaker (+)
A3   LF+ Left front speaker (+)
A4   LR+ Left rear speaker (+)
A5   RR- Right rear speaker (-)
A6   RF- Right front speaker (-)
A7   LF- Left front speaker (-)
A8   LR- Left rear speaker (-)
A9   CAN-H CAN bus high (Infotainment)
A10   CAN-L CAN bus low (Infotainment)
A12   GND  Terminal 31
A15   BAT+  Terminal 30
A16    Permanent positive (not used)

 

12 pin B connector

Pin
Number
Pin
Name
Description
B1 Left LF IN+ Left IN for the external audio source connection
B2 LF GND LF for the external audio source connection ground
B7 Right LF IN Right IN for the external audio source connection

12 pin C connector

Pin
Number
Pin
Name
Description
C2 Right LF OUT  
C3 LF OUT ground  
C4 Microphone OUT (-)  
C5 Left LF IN (-)  
C6 LF (-) from Telephone Transceiver
C7 Microphone IN (+)  
C8 Left LF OUT  
C9 Microphone OUT (+)  
C10 LF mute  
C11 Left LF IN (+)  
C12 LF (+) for the telephone transceiver

 

10 pin Front Information Display Connector

Pin
Number
Function
1 Voltage Supply
2 Ground
3 n/c
4 Diag. Display
5 Cable Diag
6 LVDS OUT (+)
7 LVDS OUT (-)
8 LVDS OUT ground
9 Diag T0
10 Diag T1

 

 

10 pin Audi in-dash Display connector layout
10 pin Audi in-dash Display connector
at the head unit
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Audi A4, B8 (2008-2012) Concert Head Unit visual pinout:
Audi A4, B8 (2008-2012) Concert Head Unit diagram
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