Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Multimedia Control Module, Multi-Pin Connector Assignment
Multi-Pin Connector -A-, Green
1 -
Left rear treble speaker, positive
2 -
Right rear bass speaker, negative
3 -
Right rear bass speaker, positive
4 -
Left rear bass speaker, positive
5 -
Right rear treble speaker, negative
6 -
Right rear treble speaker, positive
7 -
Left rear treble speaker, negative
8 -
Left front bass speaker, negative
9 -
Left front bass speaker, positive
10 -
Left rear bass speaker, negative
11 -
Right front midrange speaker, negative
12 -
Right front midrange speaker, positive
13 -
not used
14 -
Left rear audio signal input, negative
15 -
Left rear audio signal input, positive
16 -
not used
17 -
Right rear audio signal input, negative
18 -
Right rear audio signal input, positive
19 -
Control in (optional)
20 -
Left front audio signal input, negative
21 -
Left front audio signal input, positive
22 -
not used
23 -
Right front audio signal input, negative
24 -
Right front audio signal input, positive
- DVD player, voltage supply, terminal 30
- Activation voltage for DVD player from radio
- Control interface for DVD player infrared signal
- DVD player, video signal negative
- DVD player, video signal positive
- Multimedia display, infrared signal
- Multimedia display, picture signal, negative
- Multimedia display, picture signal, positive
- Multimedia display, negative
- Not used
- Not used
- Not used
- Not used
- DVD player, negative
- Multimedia control module, DVD player temperature dependent input signal
- DVD player, audio signal, negative
- DVD player, audio signal, positive, right
- DVD player, audio signal, positive, left
- Multimedia display, activation voltage
- Multimedia display, protocol RXD
- Multimedia display, protocol TXD
- Multimedia display, voltage supply, terminal 30
- Not used
- Not used
- Not used
- Not used
Multi-Pin Connector -B-, Black
1 -
CAN, low
2 -
Left front midrange speaker, negative
3 -
Left front midrange speaker, positive
4 -
CAN, high
5 -
Not used
6 -
Left front treble speaker, negative
7 -
Not used
8 -
Not used
9 -
Left front treble speaker, positive
10 -
Not used
11 -
Right front bass speaker, positive
12 -
Right front bass speaker, negative
13 -
Not used
14 -
Not used
15 -
Right front treble speaker, positive
16 -
Voltage supply, negative
17 -
Not used
18 -
Right front treble speaker, negative
19 -
Voltage supply, negative
20 -
Voltage supply, positive
21 -
Voltage supply, positive
22 -
Voltage supply, negative
23 -
Voltage supply, positive
- Voltage supply, terminal 30
- Switch voltage, positive
- Radio data input
- Audio signal output, right, positive
- Audio signal output, left, positive
- Audio signal output, negative
- Radio signal input, negative
- Picture signal input, positive
- Picture signal input, negative
- Control unit, switching on, input
- Control unit control "UP", input
- Control unit control "Down", input
- Control unit, negative
- Ground, terminal 31
- Radio unit, CLK out (data protocol)
- Radio unit, data output
- Radio unit, Audio signal ground
- Control unit, radio signal output, right
- Control unit, radio signal output, left
- Control unit, radio signal output, right
- Radio unit, audio signal output, left
- Control unit, radio output for ON/OFF and source selection
- Control unit, radio output for ON/OFF and source selection
- Control unit, radio output for ON/OFF and source selection
- Not used
- Control unit, voltage supply, positive
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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