I need to connect a moog ep-3 pedal to the axoloti
This is a pot type of pedal, and I understand I need to connect VDDC GND and PB1, as in this image
I'd rather NOT open the pedal in order to see how is the jack connected to the pedal/pot's pins.
So my question is: Can this be done without opening the pedal?
For example, I have a cable that came with the pedal which I understand is simply a stereo jack cable. I haven't looked at the soldering but, can I assume the ground, longer part of the plug is connected to the pot's ground, and the other two should be either VDD or GPIO ?
Can I discover those two by trial and error? Or do I risk frying the pedal or the axoloti?
Could I actually do trial and error for all three cables ?
I found a random source saying that "The Moog EP is powered from the ring and uses the sleeve as the ground."
So I would try that first, but just in case I still would like to know if something can go wrong by connecting it wrong.
Thank you very much