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.
Connector 4 Contact Assignment
1 -
Speed-dependent volume control (GALA) signal
2 -
Radio mute for telephone operation (is active with negative)
3 -
Antitheft system voltage supply
4 -
Voltage supply terminal 30, positive
5 -
Automatic antenna signal output
6 -
Unit lighting, terminal 58d
7 -
Voltage supply, terminal 15, positive
8 -
Voltage supply, terminal 31, negative
NO RELATED
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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.