![So I just received my GA-FC and this EV-5 expression pedal for my Mk2 100w and I can't get the expression pedal to change from a master volume to a wah. I So I just received my GA-FC and this EV-5 expression pedal for my Mk2 100w and I can't get the expression pedal to change from a master volume to a wah. I](https://i.redd.it/ezm95jngvpj41.jpg)
So I just received my GA-FC and this EV-5 expression pedal for my Mk2 100w and I can't get the expression pedal to change from a master volume to a wah. I
![Amazon.com: BOSS EV-5 Expression Guitar Pedal and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments Amazon.com: BOSS EV-5 Expression Guitar Pedal and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments](https://m.media-amazon.com/images/I/51H9fciD-fL._AC_UF894,1000_QL80_.jpg)
Amazon.com: BOSS EV-5 Expression Guitar Pedal and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments
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