I have a question regarding my active Warwick FNA 4 string (or maybe it's passive with an inbound preamp or some such. . ., at any rate it has a lot of knobs). A little while ago I noticed that I was having a problem with the bass distorting, especially in the low end, so I replaced the battery as usual. But that didn't help. After a mighty bout of lowering the pickup and pulling my hair out over the problem, as there seemed to be no problem I could easily discern with the electronics (It was distorting no matter what volume or bass level I had it set to), I noticed that I was also having a problem with my input. It took setting the patch cord 'just right' into the input to get the bass to actually make a sound, and when it was moved in any way a loud, heart-rending sound was heard. So, I got disgruntled again and again. Finally I opened the cavity up and took a look inside. When I jostled the patch cord, the input was actually wiggling around inside the cavity, so I tightened the bolt holding it in (I would have done this earlier but, I'm not sure how many of you are familiar with Warwick's Electronics configurations, but everything is concealed in the contours of the basses curves, so the bolt for the input was moved to the inside of the cavity), and that managed to quell the distortion. My current theory is that when the input was wiggling, it was stressing and moving wires, possibly causing some kind of damage. But now, even though the distortion is gone, the patch cord still makes noises and stops sending signal from the bass if pushed in a certain direction, and I don't know how long the distortion will stay gone, as I managed to stop it before when I first lowered the pickup, but it was only temporary. Any advice you have would be appreciated, and I am currently seriously considering bringing it in to have it worked on, but I'm not sure yet if that's necessary.