What brand is the original Volkswagen car audio system?

[DiRemington]

Volkswagen's original car audio system brand varies depending on the vehicle configuration. Different configurations use different audio systems: standard models typically use VDO, mid-range configurations feature Blaupunkt audio, while top-tier models are equipped with Dynaudio systems. Car audio systems are installed to alleviate the monotony of travel for drivers and passengers. The working principle of car audio divides sound frequencies into three types: high, mid, and low. To enrich the tone of car speakers, some audio systems combine high and low-frequency speakers in parallel to form dual-tone speakers. However, this configuration draws significant current, which can directly endanger the button contacts. To prevent the speaker button contacts from being damaged by arc sparks, some vehicles incorporate a relay in the circuit, using low current to control high current, thereby protecting the speaker button from damage by only passing low current.