Just remember how easy that is to remove when you decide to leave your faceplate on for the night!
Really though, you were able to access the two screws that are up top, mine were buried underneath the dash piece, and in my frustrations and ended up breaking them off, but the alarm installer had already busted it up pretty good. I guess it must be only my jeep, but I don't see how one could get a screwdriver in that gap. Congrats
8 lug xj.