G&L El Toro passive wiring diagram

[Hammock]

Anyone own a passive El Toro? If you do, please help me out with some pictures of the wiring. And if you can draw a diagram I would be super happy. I have trawled the entire internet after this diagram and also contacted G&L support, but no luck. 

Please, I need help. 

 

[ikay]

This passive L-series wiring diagram may provide some clues  - https://www.bassesbyleo.com/passive_l_series.html

 

[ikay]

Looking more closely at the El Torro active circuit (see both links below), I think, if you ignore the active/passive switch (S1) and the preamp, what remains is the wiring for the original passive version. The preamp appears to just be a signal boost to present a stronger and cleaner signal to the amp. The treble and bass controls are provided by a passive circuit. 

Active circuit schematic - https://www.bassesbyleo.com/images/el_toro/tech/el_toro_wiring_diagram_drawing.pdf

Active circuit description - https://www.bassesbyleo.com/images/el_toro/tech/el_toro_wiring_diagram_description.pdf

The passive wiring would then look like the schematic below. See the description link above for the function of S2 and S3.