Electrical help

Working on an 06 300. The bike starts first kick and runs amazingly but I can’t, for the life of me, get the headlight and taillight to work.

This bike has the 2 wire regulator on it. With the regulator unplugged I’m getting 18 volts ac on the harness side showing the stator is still good.

Checked the switch and its shows resistance when on and open circuit when off so it’s still good.

New bulbs so they are good

Grounds are attached at the ignition coil all good.

Harness has no broken wires, skinned spots or kinks.

I’m at a loss on where or how to check next.