I recently purchased the GPR-1, which features 2 4-conductor humbuckers, 1 volume, 1 tone, 1 3-way toggle and 2 switches for coil splitting. Most of the wiring is already done, but I can't seem to figure out how to wire the humbuckers to the switches. There is no diagram for this and I've scoured the Internet with now luck. Does anyone have a diagram for this??