What is the best way to test a car's audio system?

I am looking for a specific and technical method to evaluate the audio quality in a car. Any suggestions?

One reliable method is to use a spectrum analyzer to measure the frequency response of the speakers. It will give you an accurate representation of any deviations from pure sound reproduction. Another important factor to test is the signal-to-noise ratio, which can affect the clarity and depth of the audio.

A more hands-on approach is to listen to a variety of music genres in the car and take note of any distortions or anomalies in the sound. This will give you a subjective understanding of how the audio system performs in real-life scenarios.