Further application of reviewing the instructions, the cable is jammed into the plug end (that plugs into amp) and is held in place with a set screw. Instr's tell one to undo set screw then cut two or three inches off cable, jam it back into plug, tighten set screw, then see if it works. Several trips down this road have failed to yield a signal to the amp other than a loud buzz. It's haphazard at best whether or not the cable is making connection at all in the plug. Not impressed with this given the price of this pick up. I may take it back and/or Guess I'll have to try miking the guitar or get an accoustic with onboard electronics.