I have an EHX Signal Pad that I used for previous endevours. Now it's just sitting around and worth about $20. If you aren't familiar with these pedals, they are true bypass with a passive volume knob. When engaged, the signal is cut with the volume knob. I would like for it to mute when the pedal is disengaged, and be controlled by the volume knob when it is engaged. I'm assuming that this would literally be removing one wire from the switch but I'm not sure which one. I am familiar with soldering, too.