Thanks to pattonsr for the great question and my good friend, Bill who was an early adopter and put up with my growing pains!
As Bill points out, the Cool Tech harness is installed and working well for many, many Jeep owners.
As to pattonsr's question it really pertains to the best way to connect a braking module. Some braking modules may use the brake lights as an indication to their internal controller that the unit is depressing the brake pedal. If you connect these modules to the wrong wire, the controller may pick up the brake light signal from the tow vehicle. The good news is that there is an easy solution.
As stated previously, the Cool Tech harness can be connected as per the included instructions - no changes are needed.
If you want to hook up a brake module that needs a brake light input, tap into the white/gray wire at the brake pedal switch. This wire is normally "open" but sees 12v when the brake pedal is depressed. It works completely independently from the left/right tail light wires and can be used if you have a Cool Tech harness installed or not.
Also, this wire's operation is NOT effected by the Ignition Off Draw (fuse). It works the same if the IOD fuse is installed or not.
I hope this helps. Happy RV'ing / Jeeping!!
1996-2015 Jeep Wrangler
Toad Wiring Solutions
Cool Tech LLC