I just did it and despite the rhetoric to the contrary, it would be VERY difficult (if not impossible) to fish the wire connector all the way through.
Step #1: remove the plastic dash cover (4 bolts)
Step #2: remove the heavy plate that holds the column in place (3 nuts). Make sure you take care to note the ground wire so you put it back where it was.
Step #3: remove the sheet metal wire cover (2 screws)
Step #4: Now you can replace the switch. If you got the new Mopar replacement switch, you can cut off the extra 3 wires and related connector.
Step #5: take a dremel and grind down the hazzard knob because it's too big.
Step #6: put all the brackets and covers back in reverse order
Step #7: apply the grease (or use some white grease) to the horn contact ring
Step #8: reinstall the steering wheel and horn pad.
Dave
ps, If you're a big guy then you might want to take the front seat out.