Heres mine.....

I slotted my trunk brackets a lil different than recommended, but once the nut is in place you cant see the cut...... because of the angle it will stay on with the nuts loose........ and you don't have to trim down the front of the brackets to tip and slide as in the standard mod, so it looks mostly stock with the nuts on.... drops right down on the bolts. I also use nylon spacers to shim the gap and leave them on when the trunk is off.. covers the threads of the bolts once the nuts are tightened.

I also installed quick disconnect plugs for the lights and speakers..... just 2 plugs and the antenna connections under the seat and ready to go..no removing side cover at all.. used the wiring harness that came with the standard taillight and spliced in the plug.

I also used a powered "hidden" antenna from online that hides under the seat.. works but might move it to the inside of the saddle bag for better reception.... but no mount for a standard antenna that way... I use the trunk mounted antenna when the trunk is in place.
Thats how I did it , but the other ways work too...
Brad