most likely you will jsut have to cut out the plastic cage and sand down the bezel, it should be fine.

My car may run 18s, but I can do your taxes in 10 seconds flat.
JBO lube - they would never have enough in stock and we'd never see RodimusPrime again
well the Kenwood 6.95" Double Din headunits fit in the FACTORY OPENING of the 00+ J Bodies. I am going to go out on a limb here and guess the Clarion is the same way.
So as long as you have a 00+ Dash Bezel in your gire (not sure what year you have) you'll be good. The Metra 99-2003 Dash Kit has brackets in it for the double din to be ISO mounted.