What is the situation when the car keeps making noise inside?

[OKaleb]

When the car keeps making noise inside, first determine where the noise is coming from, such as the horn or alarm continuously sounding, and then conduct targeted inspection and repair. If the car horn keeps sounding, it must be due to the power line of the horn being continuously energized. There are two factors that can cause the horn's power line to remain energized: The button on the steering wheel is stuck, remaining in the continuously energized position; the contacts of the horn relay cannot disconnect normally and remain in prolonged contact. If the car radar keeps sounding: The alarm is too sensitive, so even slight movements around the car can trigger continuous noise. In this case, adjusting the sensitivity can resolve the issue; a door malfunction can also cause the alarm to sound, requiring repair at a service center; the sensitivity of the anti-theft sensor is too high. There is a sensitivity adjustment knob on the vibration sensor of the anti-theft device, and fine-tuning it can solve the problem.