It works! I used an old cable and I'm not able to get the screw cap back on under the sheathing b/c it's a messy job, but it's a use-at-home toy anyway. 🙂   Thanks @Craig Anderton I have a bag full of red LEDs if anyone else want to try. Text me your address and I'll drop a few in the mail. I think I killed 3 in the trying before the final 2 worked, so how about I'll send 6? Btw, I was curious if I might be able to see the LEDs flicker when I hit the guitar. In a lit roo