I'm getting some crackling/popping sounds coming through my setup at home, only when using my P bass (Fender 60th Anniv, with stock P pickup). When I use my Lakland 44-02, everything is dead silent. Obviously, I don't hear this when I'm playing, and there is no change in volume. Only during those moments when I'm not actually playing will the crackling start. Not constant, but intermittently. I've tried mixing & matching cables, cabinets, heads, basses, different rooms in the house, etc. The one constant is the P bass. I took the P bass to a shop last week & he said it all checked out. Static electricity was suggested as a possible culprit. Last week at rehearsal in a different house, my bass was silent. I guess the problem could be "dirty power" since we have an old house. No fluorescent lighting, but most rooms have ceiling fans. I get this noise only with the P, not the 44-02, even in the same room. (This is different than the 60-cycle hum, which I also get, but am not as concerned about.) Is the P pickup just more sensitive to the environment? I'm plugged directly into the wall outlet, not through a surge protector or other device, so I could try that, as well. Any suggestions?