First: I am a complete novice at electronics. No skill, at all. Okay, that's out of the way. I have a mustang RI, about 5 years old. It buzzes when it's near my body. Doesn't buzz when I set it down away from me. It doesn't buzz when I touch the strings, bridge, or tuning pegs. Rolling the tone knob off lessens the buzzing. I have shielded the pickups and jack/knobs with copper plating inside the cavities of both. I got the copper plating from an older bass, and cut it to fit the cavities of the mustang. No change. I have tested the bass with different chords and amps. No change. I get the same buzz all the time. So, what else can I do to get rid of the buzz? I don't want to get rid of the bass. Thanks!