Mercedes Benz S-Class Harman Kardon amplifier repair

There are MB W221 Becker logic 7 amplifier repair video. It takes me around 8-10 hours to complete one amp till finish. This is just simple repair. Usually they are more complicated repairs, and most cases not repairable if any one clean dust and plug back to the car. Contact: info@carbrainfix.pro Location: United Kingdom, London BE 9061