Where is The AC blower motor resistor?

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I own a 98 Boxster on which I need to replace the AC blower motor resistor. The fan is stuck blowing on high no matter what I do which is a bad resistor. I purchased a replacement resistor, but I can't find anywhere online that has a photo of where the resistor is, instructions for how to get to it or a video showing it being replaced. Does anyone have a photo or video showing where it is and how to get to it? I don't want to just go in and start tearing things out that don't need to be removed, but I have a feeling it is going to take some work to access it.