If you have the reverse light figured out then the remaining are the indicators for the automatic gear selector display and the neutral safety switch. The neutral safety switch is a relay labeled 30 in the diagram. I assume you already bypassed that relay in your conversion. Is that what you call solenoid?
If you removed the relay and the gear indicator then you can remove all the wires I think.
If you removed the relay and the gear indicator then you can remove all the wires I think.