Microphonic pickups/grounding problems

[timo]

I have a bass with Nordstrand jazz pickups and an Aguilar OBP-3 preamp and I've recently been having lots of problems with interference noise (thought it was stage lights at the time) and clicks when I touch the strings and pots which points to grounding issues. I've just had a more thorough poke around and all the wiring is sound but the pickups seem to be microphonic (if I crank my amp I can use them as a vocal mic). Could microphonic pickups cause the interference noise and grounding issues?

[lettsguitars]

No. Although if the pup is loose and possibly moving around there is a chance that something could have shorted inside the pickup. If a humbucker is wired up paralell you will get all the noise of the fair. You could try swapping the wires round.