A slow sine wave patched into the filter cutoff creates that classic wobble. This one cable is the secret behind a thousand dubstep and acid tracks.
The filter has a knob, but the filter also has a CV input. Anything you can reach with a knob, you can reach with a cable.
Patch the LFO SIN into the Filter FREQ CV input. The LFO sweeps the cutoff up and down once per second. That is the classic wobble: one cable, and every dubstep and acid track ever made becomes possible.
Tip
Try changing the LFO rate. Slow it down and the filter breathes. Speed it up and it starts to sound like vibrato.