In the BMW x6 car audio, there are more than 8 speakers in the high-profile model near the A-pillar triangle window. On the table under the windshield, there are two front doors, one left and two right back doors, one left and two right C-pillars and one left and right C-pillars. Correct use of car horns: On some narrow roads with only two lanes in both directions, such as country roads or mountain roads, it is usually necessary to borrow the opposite lane to overtake. In this case, it is suggested to sound the horn before overtaking to remind the vehicles in front to avoid accidents. Honk the horn in advance before entering the corner to remind the opposite lane not to drive illegally. If you receive a warning signal from the opposite speaker before turning a corner, I suggest you honk your horn in response to the other side, so that both parties can know that the oncoming car is driving confidently and regularly in their own lanes to ensure driving safety.