Alright, I went ahead and figured out the answer to my own question. For anybody else who decides to put the European switch on their bike, this is how to make the flash to pass trigger work.
When I opened up the switch, I noticed that the low/high beam switch itself had a red wire and a yellow wire connected to it. The flash to pass trigger also had the same exact red wire and a white wire. Coincidently, there is only 1 red wire at the wiring harness connector itself which led me to believe that these 2 red wires must splice together somewhere before they get to the connector plug.
I removed all of my fairings last weekend when I changed the oil and spark plugs and I left them off so I could wire up this switch as soon as I received it in the mail. Additionally, I had to remove a small plastic piece from the right side of bike which was located right by the bottom of the gas tank. After removing it, I could see approximately 3-4 wiring harness connectors right behind it. 1 of them was the wiring harness for this switch!
I disconnected the old switch and plugged in the new switch. All of the original buttons worked plus the hazard button worked immediately without any modification; however, the flash to pass trigger did nothing at all as was expected. I started the bike up and used a volt/ohm meter to test for current. I found out that the red wires which go to the low/high beam switch and flash to pass trigger have ~14 volts running to them. My understanding led me to believe that the current from the red wire needs to get to the yellow wire in order to complete the circuit to turn on the high beams.
Simple enough right? I took a paper clip and held one end to the white wire and the other to the yellow wire from the top side of the harness connector. After I did that, I pulled the trigger and the high beams lit up!!
So in order to make the flash to pass trigger work, all you have to do is splice the white wire to the yellow wire. I'm probably going to do it right down near the wiring harness connector so it is hidden underneath the tank instead of having some hacked up looking switch. It also makes sense for me to do it in this location so I can run the wires from there to my garage door opener and keep the wires tucked away where they cannot be seen.
I hope this helps for anybody else who wants to add the European switch to their bike!
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