Volkswagen Factory Amplifier Details And Pin Assignments

Multi-pin connector A, 24-pin

1 –  Rear left treble loudspeaker, positive

2 –  Rear right bass loudspeaker, negative

3 –  Rear right bass loudspeaker, positive

4 –  Rear left bass loudspeaker, positive

5 –  Rear right treble loudspeaker, negative

6 –  Rear right treble loudspeaker, positive

7 –  Rear left treble loudspeaker, negative

8 –  Front left bass loudspeaker, negative

9 –  Front left bass loudspeaker, positive

10 –  Rear left bass loudspeaker, negative

11 –  Front right mid-range loudspeaker, negative

12 –  Front right mid-range loudspeaker, positive

13 –  Not assigned

14 –  Audio signal input, rear left, negative

15 –  Audio signal input, rear left, positive

16 –  Not assigned

17 –  Audio signal input, rear right, negative

18 –  Audio signal input, rear right, positive

19 –  Control in (optional)

20 –  Audio signal input, front left, negative

21 –  Audio signal input, front left, positive

22 –  Not assigned

23 –  Audio signal input, front right, negative

24 –  Audio signal input, front right, positive

Multi-pin connector B, 23-pin

1 –  CAN low

2 –  Front left mid-range loudspeaker, negative

3 –  Front left mid-range loudspeaker, positive

4 –  CAN high

5 –  Not assigned

6 –  Front left treble loudspeaker, negative

7 –  Not assigned

8 –  Not assigned

9 –  Front left treble loudspeaker, positive

10 –  Not assigned

11 –  Front right bass loudspeaker, positive

12 –  Front right bass loudspeaker, negative

13 –  Not assigned

14 –  Not assigned

15 –  Front right treble loudspeaker, positive

16 –  Voltage supply, negative

17 –  Not assigned

18 –  Front right treble loudspeaker, negative

19 –  Voltage supply, negative

20 –  Voltage supply, positive

21 –  Voltage supply, positive

22 –  Voltage supply, negative

23 –  Voltage supply, positiveF

The sound system amplifier extends the sound range of the radio unit or radio navigation system.

It is available as optional equipment for appropriate radio units and radio navigation systems.

The amplifier is an 8-channel system.

The signal inputs on the amplifier are activated by the loudspeaker outputs of the radio unit or radio navigation system.

The amplifier is installed under the left front seat.

Factory Amplifier Pin Assignments

Multi-pin connector A, 24-pin

1 –  Rear left treble loudspeaker, positive
2 –  Rear right bass loudspeaker, negative
3 –  Rear right bass loudspeaker, positive
4 –  Rear left bass loudspeaker, positive
5 –  Rear right treble loudspeaker, negative
6 –  Rear right treble loudspeaker, positive
7 –  Rear left treble loudspeaker, negative
8 –  Front left bass loudspeaker, negative
9 –  Front left bass loudspeaker, positive
10 –  Rear left bass loudspeaker, negative
11 –  Front right mid-range loudspeaker, negative
12 –  Front right mid-range loudspeaker, positive
13 –  Not assigned
14 –  Audio signal input, rear left, negative
15 –  Audio signal input, rear left, positive
16 –  Not assigned
17 –  Audio signal input, rear right, negative
18 –  Audio signal input, rear right, positive
19 –  Control in (optional)
20 –  Audio signal input, front left, negative
21 –  Audio signal input, front left, positive
22 –  Not assigned
23 –  Audio signal input, front right, negative
24 –  Audio signal input, front right, positive

Multi-pin connector B, 23-pin

1 –  CAN low
2 –  Front left mid-range loudspeaker, negative
3 –  Front left mid-range loudspeaker, positive
4 –  CAN high
5 –  Not assigned
6 –  Front left treble loudspeaker, negative
7 –  Not assigned
8 –  Not assigned
9 –  Front left treble loudspeaker, positive
10 –  Not assigned
11 –  Front right bass loudspeaker, positive
12 –  Front right bass loudspeaker, negative
13 –  Not assigned
14 –  Not assigned
15 –  Front right treble loudspeaker, positive
16 –  Voltage supply, negative
17 –  Not assigned
18 –  Front right treble loudspeaker, negative
19 –  Voltage supply, negative
20 –  Voltage supply, positive
21 –  Voltage supply, positive
22 –  Voltage supply, negative
23 –  Voltage supply, positive

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Multi-pin connector 1, 8-pin, for loudspeaker outputs

1 –  Rear right loudspeaker, positive

2 –  Front right loudspeaker, positive

3 –  Front left loudspeaker, positive

4 –  Rear left loudspeaker, positive

5 –  Rear right loudspeaker, negative

6 –  Front right loudspeaker, negative

7 –  Front left loudspeaker, negative

8 –  Rear left loudspeaker, negative

Multi-pin connector 1, 8-pin, for loudspeaker outputs

1 –  Rear right loudspeaker, positive
2 –  Front right loudspeaker, positive
3 –  Front left loudspeaker, positive
4 –  Rear left loudspeaker, positive
5 –  Rear right loudspeaker, negative
6 –  Front right loudspeaker, negative
7 –  Front left loudspeaker, negative
8 –  Rear left loudspeaker, negative

Note! When used with a sound amplifier, the same pin assignments are used as line-in for the sound amplifier. To achieve this, the radio unit is programmed from “output stage power 26 dB” to “output stage line-out 12 dB” in the factory. Details on how to perform this can be found in Volkswagen RNS 510 coding when installing with a factory amplifier.

Multi-pin connector 2, 8-pin, for voltage supply lines and CAN bus

9 –  CAN bus, high

10 –  CAN bus, low

11 –  Display voltage supply, positive, optional for radio module low version only

12 –  Voltage supply, negative, terminal 31

13 –  Display HV CAN bus low, optional for radio module low version only, not for midline

14 –  Display HV CAN bus high, optional for radio module low version only, not for midline

15 –  Voltage supply, positive, terminal 30

16 –  Anti-theft coding control signal, SAFE, positive

Multi-pin connector 3, 12-pin, for telephone and microphone signals

1 –  Microphone input, negative

2 –  AUX output, audio, right

3 –  AUX output, common signal earth

4 –  Microphone output, negative

5 –  Telephone audio input signal left, negative

6 –  Telephone audio input signal right, negative

7 –  Microphone input, positive

8 –  AUX output, audio, left

9 –  Microphone output, positive

10 –  Telephone mute (mute switch for radio)

11 –  Telephone audio input signal left, positive

12 –  Telephone audio input signal right, positive

Multi-pin connector 4, 12-pin, for CD changer control and CD audio input signals

1 –  AUX signal input, left
2 –  AUX signal earth
3 –  CD changer, audio signal earth
4 –  CD changer, voltage supply, positive, terminal 30, contact continuous load greater than 1 A, temporary peak load 5 A
5 –  Not assigned
6 –  CD changer, DATA OUT (data exchange for CD changer control from radio navigation system to CD changer)
7 –  AUX signal input, right
8 –  CD changer, left audio channel, CD/L
9 –  CD changer, right audio channel, CD/R
10 –  CD changer, control line, switched positive
11 –  CD changer, DATA IN (data exchange for CD changer control from CD changer to radio navigation system)
12 –  CD changer, CLOCK (internal check protocol for data flow monitoring)

Multi-pin connector 5, audio and video, 26-pin

1 –  Reserved for Debug RX protocol
2 –  Reserved for Debug TX protocol
3 –  Not assigned
4 –  Video signal input, RGBS, negative (ground)
5 –  Video signal output LF, Right (Audio use 17 for ground)
6 –   Ground Sync input
(Internal universal preparation for mobile telephone, mobile telephone detection)
7 –   Video signal output, vertical and horizontal synchronisation
(Internal universal preparation for mobile telephone, cradle and button evaluation)
8 –   Video signal ouput, green
(Internal universal preparation for mobile telephone, cradle, aerial diagnosis)
9 –  Video signal input, RGBS, negative (ground)
10 –  Video signal input LF, right  (Audio use 24 for ground)
11 –  Video signal input, screening earth
12 –  Video signal input, vertical and horizontal synchronisation
13 –  Video signal input, green
14 –  Not assigned
15 –  Not assigned
16 –  Not assigned
17 – Video signal output, LF, negative (ground)
18 –  Video signal output LF, Left  (Audio use 17 for ground)
19 –  Video signal output, RGBS, negative (ground)
(Internal universal preparation for mobile telephone, cradle, negative)
20 –  Video signal output, Blue
(Internal universal preparation for mobile telephone, switched terminal 30)
21 –  Video signal output, Red
22 –  Video signal input, LF, negative
23 –  Video signal input, LF, left (Audio use 24 for ground)
24 –  Video signal input, RGBS, negative (ground)
25 –  Video signal input, blue
26 –  Video signal input, red

Connectors 6, aerial connectors

1 –  AM and FM2 radio reception aerial connector, double Fakra, no coding, impedance 50 ohms, colour cream-white

2 –  FM1 radio reception aerial connector, double Fakra, coding B, impedance 50 ohms, colour cream-white

3 –  Navigation aerial connector, double Fakra, coding C, impedance 50 ohms, colour signal blue

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