As my user name implies, I am a signguy. I have applied materials similar to this and Rubiconhd is correct; ya gotta get it clean. Instead of rapid-tac I have used a solution of dish soap and water for application fluid. Very little soap and lots of water please, you just want to make it slippery enough to squeegee out the air bubbles. Use a real vinyl squeegee, not a credit card or a bondo squeegee. A heat gun helps a bunch to apply any large vinyl decals. Consider going to a Sign Shop that specializes in vehicle wraps. This stuff can be pretty tricky. My suggestion is if you really want to wrap yer rig, practice on a tool box first. If you can make it look good, you should be able to wrap your Jeep. Myself, I'm one of those old dinosaurs who still airbrushes and hand letters. You get one of a kind results that way.... but that's just me.

Good Luck