The driver's audio debugging of a one-and-a-half-story passenger car can be adjusted according to the following steps:

1. Turn on the vehicle audio system and turn down the volume to avoid unnecessary harm to the passengers during the adjustment process. interference.

2. According to the type and configuration of the sound system, find the audio control panel or controller, including volume adjustment, tone adjustment, sound field effects and other functions. Some car audio systems can also be controlled using a remote control or mobile phone app.

3. Adjust the volume: Gradually increase the volume adjustment knob or button to test whether the volume is appropriate and avoid being too high or too low.

4. Adjust the tone: According to personal preference and music type, adjust the tone controller to change the timbre and sound quality. For example, turning the Treble control higher will increase the treble effect, and turning the Bass control higher will enhance the bass effect.

5. Adjust the sound field effect: Some high-end car audio systems are also equipped with sound field effect controllers, which can adjust parameters such as sound field width, depth, and height to obtain a more realistic sound effect experience.