Jamie, if you haven't already done it, you might want to read this thread: http://www.jeepforum.com/forum/f67/c...8/index19.html
Shibby Engineering makes the resistor plug which I ordered. It is a well made item and cost about $25 from memory. Seems that it took quite a bit of doing to track down the right plug etc. It is possible to achieve the same thing with a resistor and some heat resistant tape but if you want a more professional, and relatively inexpensive, fix you might be better off just ordering from Kurt at Shibby Eng. Good service and he delivers overseas.
There was a guy in the UK that ordered them in bulk (Probably from Shibby) and sold them in your neck of the woods - think I saw this on a UK Chrysler 300 forum). Good luck.