关键词：汽车；CAN；汽车音响；CAN节点
摘 要：In the paper,an in-car audio entertainment node is designed,which is a kind of pre-installed automobile electronic assemblies.In order to reduce auto wiring harness and solve the communication problem between nodes,the hardware and software of the electrical control system were designed by using body CAN bus technology.The product has been successfully applied in a model which is made in joint ventures with foreign auto makers.The practical operation shows that functions are practical and reliable.It reaches completely design requirements,with good user experience and value.