Hi Andrew, I just got my pedals Monday. I plug them in the back of the "IN" midi of the keyboard. The other end into the pedals.
The moved switch in the back of the keyboard. I one of the positions will allow you to use the keyboard setup. Which one/ Trial and error.
1-Press Program Menu---Right top of the keyboard.
2-Press sound -- left top of window
3-Press part setting --Left top of window.
4-Scroll through with the part select buttons --left top of window.
5-Pass 1 thru 16, next window is for Bass Pedals. Select your instrument and Save it in the Panel Memory.
You can select any instrument you want. Bass, drums, sax,ect.
Enjoy, John C.