i just installed new pickups in my guitar and am getting the loudest ground buzz. It goes completely silent when I touch the strings, bridge, etc. and operates as it should. I pulled out the Dimarzios and installed Duncans, the same three way switch but I pulled the volume pot and installed a Dimarzio push-pull for coil splitting. Even on clean channels the buzz is quite loud until I touch the strings. None of my other guitars buzz that loud. Any thoughts on where to look? I've tried connecting a wire to different points to see if I could find it to no avail. I've been building my own instruments for 30 years so I'm no amateur. I've never heard a ground buzz this loud before.