SEAT Workshop Service and Repair Manuals > Leon Mk2 > Vehicle electrics | Radio, Telephone, Navigation | Infotainment | Radio "SEAT Sound System 2.0" | Overview of the plug connections on the ?SEAT Sound System 2.0? radios | Multiple connector 4, 12-pin, AUX audio output, CD changer control and CD audio input signals

Multiple connector 4, 12-pin, AUX audio output, CD changer control and CD audio input signals

1 -	AUX audio input, positive, left

2 -	AUX audio input, negative

3 -	CD changer audio, negative

4 -	CD changer, voltage supply, positive

5 -

not used

6 -	CD changer, bus DATA OUT

7 -	AUX audio input, positive, right

8 -	CD changer, left audio channel, positive

9 -	CD changer, right audio channel, positive

10 -	CD changer, control signal

11 -	CD changer, bus DATA IN

12 -	CD changer, bus CLOCK

Radio aerial adapter (Splitter)

1 -	Radio aerial input

2 -	Radio aerial output

For the correct operation of the aerial, the adapter must be fitted in order to duplicate the radio signal.