I would just add that once you've researched it a little, then go ahead and call Keith at Ride Time and he'll spend all the time you need discussing your project and the solutions. I spoke with him last Friday, for about 30 minutes, and he's very knowledgable and patient. Great guy to work with. He has adapters, controllers, etc. and is also a dealer for Custom Dynamics, so he'll get any of their parts needed at the same price as their website.
I intend to wire mine completely with adapters, plugs, and dis-connects (in tour-pak), etc. so I don't tap ANY factory wires. An example is pictured in Reply #11 above that plugs in between the harness plug under the seat, then the leads will go to my tour-pak. The factory wires in t/p will remain, just not used. Just seems easier that way, to me, since I'm replacing the t/p lights with LEDs. Keith is even making me a couple dis-connect wires, along with adding plugs to chosen Back-Off XP (or Wig-Wag) controller. All will be dummy proof for future t/p removals and reinstalls, etc. (only plug in one-way).
Good Luck!