![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://preview.redd.it/ezm95jngvpj41.jpg?auto=webp&s=a0646cc341521b8267c239f5d1807d3e40e55996)
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
![KatanaMKII212 this auto wah is fun. Both Foot control and expression pedal on back order thanks to the recent winter storm. This amp is a blast!! : r/BossKatana KatanaMKII212 this auto wah is fun. Both Foot control and expression pedal on back order thanks to the recent winter storm. This amp is a blast!! : r/BossKatana](https://external-preview.redd.it/Q4_WNby7-PZOEF2s_y9hTAmpr5ad8M8Wvj6wNd-Pl-Y.png?format=pjpg&auto=webp&s=bfc2ed6d68b9d224866b663c08859d5fd94fcbc8)
KatanaMKII212 this auto wah is fun. Both Foot control and expression pedal on back order thanks to the recent winter storm. This amp is a blast!! : r/BossKatana
![Boss Katana 50 MkII 50-Watt 1x12-Inch Guitar Combo Amplifier Bundle with Roland Instrument Cable and 24pk Picks : Musical Instruments Boss Katana 50 MkII 50-Watt 1x12-Inch Guitar Combo Amplifier Bundle with Roland Instrument Cable and 24pk Picks : Musical Instruments](https://m.media-amazon.com/images/I/81UIalcm1BL._AC_SS450_.jpg)