A friend is having an issue with his japanese tele. I think it's all stock aside from the CRL pickup selector. When switching to the neck pickup with a distorted sound at anything above home volume, there is an unpleasant squealing sound. I've encountered this before with the bridge pickup where the base plate was loose and securing it solved the issue (thanks to Mr DiStefano for the tip). I've put rubber tubing on the neck pickup screws (body mounted) as well as a few bits of foam just to try and prevent any external vibrations getting to the pickup. the whole control plate is quite microphonic which presumably doesn't help. It seems to me like the pickup needs potting (or, more likely, replacing with something nicer) but I would like to try other options first, within the remit of minor adjustments one can make with a screwdriver and normal household bits! Does anyone have any ideas? How best to reduce noise from the control plate perhaps?