Answering my own questions, when the wires on the high pressure switch are jumped, the fans turn on at half speed (assuming all else is well). Mine did not go on, so I went on over to the Aux Fan relay and found that the top wire was rusted and crumpled in my hand. Once cleaned and connected, the aux fans turned on.
After a small bit, the resistor began to smoke... probably caused by all of the rust/corosion. I'll go ahead and replace it as soon as I can remove the bottom screw. The only way to get to it is to first remove the coil cover. Any ideas on how this thing comes off?