一般车载mp3都有遥控器，多数编码方式都是一样的，但并不同于一般的LC7461编码，此程序用中断方式实现车载mp3遥控器的解码，解码成功后，可用车载mp3都有遥控器做多路遥控开关。-Generally have a remote control car mp3, most coding is the same, but different from the general LC7461 code, interrupt this program to achieve with the remote