Finally fixed the HVAC fan/motor unit. It was making obnoxiously unbearable clicking and whirring noises, along with the fan itself cutting in and out. My guess was just dust and particles getting into the motor or the bearings or some sorcery. However when I took it out, it looked rather clean to me.
It was an easy fix, but the unit itself was a bitch to get to. Beneath the glovebox/above the passenger footwell. Unclipped a large black plastic piece, three screws on the unit, while having my head essentially resting on the floormat looking upside down
Clicking noise and low fan speed is gone, but the whirring is still there. Probably going to order a new HVAC fan/motor unit.