Now, everything left involves the simple connections with the awesome connectors Harley provided. Holy $&?! Those things are frustrating.
Any way, strip your wire ends about a 1/4 inch, insert into barrel, crimp down- hard. Insert the other wire into the other end and crimp- make sure you don't pull the opposite end out in the process. Lightly tug on the wires to ensure you have a good connection. Apply heat to shrink the sleeves.
Like Spazz said-
black to black transmitter to extension, and black to black extension to electrical accessory harness under seat.
Orange goes from transmitter in the fairing, under the tank, to the electrical accessory harness under the seat.
White wire goes from the transmitter to the blue/white of the headlight.
Double check all connections.
Replace the fuse.
Turn on ignition- don't start the bike.
Turn on your high beams- you should see a red light appear on the transmitter- the light is on a part that looks like a tiny red fuse.
If you see the red light blink. You have the connections correct.
Slide the headlight harness back into its retaining clip.
Reconnect the headlight to the headlight harness.
Reinstall the outer fairing- I'm a pro at the fairing removal now. Wow. I'm so glad I have a working GDO and sexy daymaker now.
Now I need to update my signature block.
Cheers.