A4 Sedan V6-3.2L (BKH) (2007)
14
Switched positive - Terminal X
15
LED - Red
16
LED - Green
18
Ground (GND) - Terminal 31
19
Ground (GND) - Terminal 31
42-pin, multi-pin connection - T42, continued
22
Lights
23
Door unlock
24
Cellular telephone Audio Output
25
Cellular telephone - Audio Ground
26
Cellular telephone - Power
27
Cellular telephone - Receive (RS232)
28
Cellular telephone - Line 2 (Rx)
29
Cellular telephone - Hook Switch
30
CAN Bus - Low - Infotainment
31
Audio out
32
Emergency Speaker - ( - )
33
Inside microphone - ( - )
34
Mute
35
Keypad In
36
Keypad Power
38
Airbag (Crash) Line output
39
Battery positive (B+) - Terminal 30
40
Battery positive (B+) - Terminal 30
41
Backup battery - ( + )
42
Backup battery - ( + )