Fix: A/C Fan Only Works on High [2001 Chrysler Voyager]

Our 2001 Chrysler Voyager minivan air conditioning (and heater) fan would only blow when the fan speed knob was turned to its highest setting. Some quick web searches revealed that I needed to replace the blower motor resistor. Here's a quick how-to video that shows that a geek can fix the problem, even with only a minimal amount of mechanical ability.