where can i find blower final stage fan resistor? on 1993 BMW 525i

I need to replace blower final stage fan resistor.where can i find it?

Asked by for the 1993 BMW 525i
Unsure where it is on a LHD car but on a RHD it is on the right side, removal of the under dash trim required, clipped to the heater box is your fan speed resistor with a plug with about 5 wires on it.
Unclip it and clip in the new one. Very tight area