SEAT Workshop Service and Repair Manuals > Leon Mk2 > Vehicle electrics | Radio, Telephone, Navigation | Infotainment | Radio / navigation system 300 MP3 | Plug connector overview of radio / navigation system 300 MP3 | Multiple connector 4, 12-pin, for the CD changer control and the input signals from CD audio

Multiple connector 4, 12-pin, for the CD changer control and the input signals from CD audio

1 -

not used

2 -	CD changer, left and right channels, earth

3 -

not used

4 -	CD Changer, positive voltage supply, terminal 30

5 -

not used

6 -	CD changer, DATA OUT (exchange data between radio navigation system and CD changer for controlling changer)

7 -

not used

8 -	CD changer, left channel, CD/L

9 -	CD Changer, right channel, CD/R

10 -	CD changer, control signal

11 -	CD changer, DATA IN (exchange data between radio navigation system and CD changer for controlling CD changer)

12 -	CD changer, CLOCK (internal verification protocol for testing data transfer)