The single volume pot in my homemade wolfgang guitar makes a clicky/scratching noise when I use it with a wireless system. I dont know why. It had a 500k Switchcraft pot in it and it made the scratching sound then I put a 500k Dimarzio pot in and it still makes the noise with wireless. Is it the pots fault or would it have something to do with the type of wires I used, bad saudering on my behalf. The control cavity is shielded. Anyone have any ideas?