I have an 84' SQ MIJ bullet that is ticking me off. It was quiet when I bought it but now its unplayable to to buzzing. It started after I adjusted one of the pups (mustang type humbuckers) and added tapewounds. I figured its the tape wounds and took then off..no help. I then thought it was the volume pot since it made the buzzing worse if I turned it full open..changed it..nope. I tried shielding it but ran out of tape but the job was decent...nope. I pulled the bridge all is ok ..good contact. I even soldered a ground wire from the jacks ground lug to the sheilding..no help. I am giving up ..any ideas? its a simple bass circuit. I thought of just gutting it and starting over new wire, pots, jack or take it to a shop I know of. Could it be the pups..I'm wondering but the bass sounds great except for a very loud humming and buzz. Thanks.