I installed the AC fan on the passenger side (the AC fan is plugged in already and it works) and found that there was one plug left over. I couldn't find the female for the male plug. I'll attach the picture.
I even removed the glove box in order to find the socket. But I couldn't find it. But I saw that the cable comes with the cable tree where one branch is plugged into the evaporator (a 4 prong plug).
Can someone tell me what this open plug is about?

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