Hai there. I've got my hands on a Stony "Sound of Rock Power" bass with a single active Musicman pickup with a 3-band eq. It's got a decent feel neck, nice hardware and an adorable flamed top. BUT, the sound is messed up. It works without a battery, but tone controls have no effect. I got this preowned, therefore it's safe to assume someone messed with the wiring before, and I can't seem to get it working right. The pickup has no markings, only thing I know about it is that it has only two wires coming out (hot and shield) The 3-band eq is a stp-001_amp-1 from Sung Jin Industrial Co. Can anyone point the direction of a wiring diagram I could use? Or do any of you guys have any pointers for me? Thanks in advance.