OK, believe it or not, I purchased a used take-out Sterling Pickup and pre-amp today.
Story was that the guy had switched out the pickup and pre-amp for something else and the sold the bass.
It seems to be a single pickup (no piezo) with the three-band equalizer. The pickup does have the third coil on the bottom.
However, the removal process apparently included a lot of de-soldering, but did not include removing the switch. So, now I have the pre-amp and input jack, and the single pickup.
So, can anybody direct me to color-coded connection diagrams for the pickup, the switch and the pre? I can solder fine, but I can't mind-read a circuit board!
Thanks!!!
Sterling Single Pickup and Pre + Switch Wiring? 
