What does src mean in a car?

[DavidMarie]

In a car, src stands for Synchronous Remote Control, which is the audio source selection button. It is used to switch between CD, USB, or Bluetooth audio, as well as to change songs or radio stations, functioning similarly to a remote control on the car's multifunction steering wheel. There are generally two types of synchronous remote controls: 1. Used in conjunction with a tension system, which is also a synchronous control device primarily achieved through synchronization of quantities like rotational speed and torque; 2. Spatial positioning controllers, which are used for position synchronization, mainly applied in systems like robots and CNC machine tools for inter-axis linkage, essentially tracking and positioning between axes.