Bringing this back to the top, I am still looking for someone who may have made this change on a more recent JK.
I found this from another forum.
Yes. There are three wires to the switch(located at the master cylendar). 1-??-Cruise, 2-Yellow/Orange-start interlock, 3-Black-ground.
If you ground the yellow/orange wire the PCM will always think the clutch is pressed in and it will defeat the system. HOWEVER, I am finding mixed info on whether the cruise really uses pin 1 or if it uses pin 2 along with the starter override, so it's possible by doing this your cruise will no longer work. Wouldn't hurt to try.