Share 'Unusual pickguard static issue'

Hi everybody, I've just setup a Mexican Fender P-Bass a d have run into an unusual issue. The owner was experiencing some static crackle when rubbing the pickguard, so I opted for some copper shielding foil on the rear of it. After doing this, the crackle is still there! Using the continuity setting on a multimeter, all the ground connections seem fine. I tried running a seperate ground wire fro…