Not quite sure to what you are referring. Assuming you mean the AUX Switch, this requires a stereo connection (meaning Tip/Ring/Sleeve), but not a stereo switch. It can accept one or two or three momentary switches with appropriate wiring. We use Digitech FS300.
Cool pedal. So I can assign one of those buttons for the tuner and I won't have to hit it twice? Then the next button could be for bypass, etc., – whatever I assign it to, right? Thanks for the fast replies!