What are the reasons for no sound in BMW audio system?

[LeoDella]

BMW audio system has no sound for the following reasons: 1. Poor socket contact or poor signal line contact. It is necessary to check whether the audio system is powered on and all signal lines are in good contact. 2. The most common failure of the amplifier is bad capacitors or burned amplifier tubes, which is a usage problem, but most of them are due to the instability of the equipment itself. 3. Some amplifiers may have a failure where one channel has no sound, and the problem is still related to internal circuit issues. 4. The amplifier is one of the electrical devices in the current audio system that is relatively prone to failure. Extended information: Maintenance of the audio system: 1. Prevent high temperature and humidity: High temperature and humidity in summer and autumn are also factors that affect the normal operation of the car audio system. To avoid sunlight exposure on the upper part of the instrument panel, using a sunshade can achieve better results. 2. Release static electricity in time: Pay more attention when using the car audio system in winter, because the climate itself is dry in winter, and turning on the heater in the car will make it even drier, which can easily cause static electricity.