Hi, long time lurker, first time poster here. I live about 100 miles from the nearest guitar tech, so I need to try and fix my geetar myself and I'm hoping someone here can help. Here's the problem: The guitar makes lots of noise (sounds about like 60 cycle hum, but it's getting louder), which is virtually eliminated when touching the metal ring surrounding the pickup selector. My suspicion is that this means a loose wire/bad solder in the selector, is this correct or are there other more likely culprits? I have a soldering iron and have swapped pickups before, so I've got a basic skill but don't know how to deal with this. Any ideas? Thanks!