I was doing some tinkering with my bass, and a wire broke off of my quarter-pounder p-bass p/u. My younger brother (who usually handles things such as this), soldered it back on. I restrung the bass, plugged it in, and .... no sound. My brother said soldering the wire onto the pickup could have melted the insulation on the wire inside the pickup(the wire wrapped around and around...). He said this would make it short out. This theory sounds alright to me. He knows what he is talking about for the most part with this stuff. I checked and double checked all of the solders, nothing seems wrong. Could this happen, or is there anything else that could have happened that you guys know of? If so, what should i do to fix the problem? Thanks in advance for any help.