I've thought about doing this for awhile, too. Changed my mind after reading this...
Great post by 4th Cherokee: Today is mod day!!!
He used Hidden Hitch from etrailer.com He helped me out a lot with pics so I could decide if it is the look I can live with. It looks great, no bumper removal, and the wiring is dead simple compared to what you will go through with the MOPAR wiring. (dealer scan tool, $$, etc)
Just food for thought. Good luck with whatever install/hitch route you take!