Audi Workshop Service and Repair Manuals > A4 Mk3 > Vehicle electrics | Communication | Infotainment | Telephone system | Connector for pre-fitted components for mobile phone installation

Connector for pre-fitted components for mobile phone installation

Note

Contacts which are not listed are not used.

Multi-pin connector, 18-pin (T18a)

1 -	Terminal 31

4 -	NF mute (low frequency) to radio -R- / control unit for front display and information control panel -J523- / control unit 1 for information electronics -J794-

7 -	NF (–) (low frequency) to radio -R- / digital sound package control unit -J525-

9 -	Microphone input (–) from microphone unit in front roof module -R164-

10 -	Terminal 15

11 -	Terminal 30

16 -	NF+ (low frequency) to radio -R- / digital sound package control unit -J525-

18 -	Microphone input (+) from microphone unit in front roof module -R164-

Audi Workshop Service and Repair Manuals