Sorry if this is basic. I've researched a bit, found a few things that talk around my question and I think I have an feel for the answer, but I want to ask it straight-out here and see what you all say. I'm wiring up a Jazzmaster, on which all the parts that are wired to each other are mounted onto the pickguard, aside from the pickups. Ignoring the pickups for now, if the entire bottom of the pickguard is covered in copper tape (and therefore all the components are essentially mounted onto the tape), do I also need to run a cable to ground? My impression is no, since the copper tape already connects all the parts. Bringing the pickups back into it, where then should I wire the pickups' ground wires?