Hey folks, I have a problematic Ibanez Musician. The onboard electronics have been replaced with a bertolini pre-amp. But something is wrong, the bass is really noisy, with or without the active electronics engaged. If I try using a fuzz pedal instant feedback. It's like it's missing a noise suppressor cap, or other low pass filter circuit. So, if any one else has one stock and can help me reverse engineer the electronics I would appreciate SOOOOO much. I can't find any info online. Thanks so much!