I installed one on my 02 and my 05 CRD. The 02 was easy. Everything went in where the holes were the bumper. The 05 CRD was a different story. The bumper and the be cut in several places and it was very hard to cut it without is looking bad. I ended up using a hitch mounted license plate to cover the center hole when there was no winch attached.
These hitchs give you alot of options of the front. I loved having the hitch, but security of your winch becomes an issue if you park outside. Also make sure your willing to cut your bumper up. I used a torch and a sharp knife. I would heat the knife a bit and cut a little on the bumper. Slow but worked.
Here is a few photos of my old CRD. Maybe you can see a little of the cutting required and how I covered it.
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2006 Jeep Liberty Sport (KJ4DIW) Ham / Warn 9500ti
http://www.cardomain.com/id/wesbronco