Fender EXP-1 Expression Pedal - for Fender Mustang GT | Reverb UK
Controllers for Fender Mustang 3/4/5 | in Street, Somerset | Gumtree
Used Fender Mustang EXP1 Expression Pedal | Guitar Center
It's a work in progress. The Fender expression pedal and multi-effect switcher control my Fender Mustang GTX-100 amp—I use the reverb and modulation effects in the amp. Feedback welcome! : r/guitarpedals