Check the line between the battery and the horn, and deal with the broken line.
检查从电瓶到喇叭之间的线路，处理破裂线段。
Details see the pictures of the battery production line.
详细资料看电池生产线图。
The "Red line" to connect the battery positive (regular power supply);
红线”接电瓶的正极（常电源）；
"Black line" to connect the battery negative (Ground);
“黑线”接电瓶的负极（搭铁）；
"Black line" to connect the battery negative (Ground);
“黑线”接电瓶的负极（搭铁）；
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