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40 (16+12+12) pin QuadLock Fakra Head Unit / Car Stereo connector layout
40 (16+12+12) pin QuadLock Fakra Head Unit / Car Stereo connector
at the car stereo
p/n 56D035190A
The pinout should fit 26 devices/models. Click to list>

Connector A

Pin
Num		 Signal
1 Rear right loudspeaker (+)
2 Front right loudspeaker (+)
3 Front left loudspeaker (+)
4 Rear left loudspeaker (+)
5 Rear right loudspeaker (-)
6 Front right loudspeaker (-)
7 Front left loudspeaker (-)
8 Rear left loudspeaker (-)
9 CAN bus, high
10 CAN bus, low
12 Terminal 31
15 Terminal 30
16 Permanent plus, connected to PIN 15, anti-theft alarm system

Connector B

Pin
Num		 Signal
1 Audio input, left, connection for external audio sources / multimedia system control unit
2 Audio input earth connection for external audio sources / control unit for multimedia system
3 Audio earth, CD
4 Terminal 30, CD
6 CD data out
7 Audio input, right, connection for external audio sources / multimedia system control unit
8 Audio left, CD
9 Audio right, CD
10 Control signal, CD
11 CD data in
12 CD-CLK

Connector C

 

Pin
Num		 Signal
1 Microphone input (-)
2 Audio output right
3 Audio output earth
4 Microphone output (-)
5 Telephone LF input signal left (-)
6 Telephone LF input signal right (-)
7 Microphone input (+)
8 Audio output left
9 Microphone output (+)
10 Telephone mute
11 Telephone LF input signal left (+)
12 Telephone LF input signal right (+)

26-pin connector

Pin
Num		 Signal
4 Screening, earth
5 Video output LF right
6 Video output earth
7 Video output sync
8 Video output green
9 Screening, earth
10 Video input LF right
11 Video input earth
12 Video input sync
13 Video input green
17 Video output LF earth
18 Video output LF left
19 Video output RGBS (-)
20 Video output blue
21 Video output red
22 Video input LF (-)
23 Video input LF left
24 Video input RGBS (-)
25 Video input blue
26 Video input red

 

26 pin Volkswagen Head Unit Video connector layout
26 pin Volkswagen Head Unit Video connector
at the VW headunit
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Volkswagen (2006-2020) RCD 510 Premium 8 Car Stereo visual pinout:click to enlarge
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