....as stated HD does not sell a harness for this. I haven't seen, heard or searched for a website to do this. You can use trailer connectors, Deutsche connectors to make your connect points for the wires. A visit to radio shack or CB Shop should get you the correct items for the CB if you're inclined to use it, also the radio if you elect not to use a hidden one under the fairing.
It's a pretty straight forward deal, take the seat off, take the insert out of the tour pac, get out your manual and you see what's involved.
Any resemblance between the above views and those of my employer are purely coincidental. Any resemblance between the above and my own views is non-deterministic. The question of the existence of views in the absence of anyone to hold them is left as an exercise for the reader. The question of the existence of the reader is left as an exercise for the second god coefficient.
Fun is a good thing, whining sucks!