Keep in mind that some of the tuffys are inserts, they can be broken loose from the console itself and taken. Result is more expensive damage than just loosing the headunit. A few companies make smaller locking security boxes, including tuffy, that can be bolted to the floor, say under the back seat. Couple of companies also make lockable boxes that go under the front seats, bolt thru the floor and have a drawer in them that pulls out, enough room for a colt1911 and half dozen magazines.
The TJ unit comes in about 3 different styles but the full length one is the strongest, bolts thru the floor and the whole console is steel, around $250 or so. The problem with the 97+ XJ WAS the heater vents going to the rear area, now it's the heater vents and the airbag controller that was moved under there from the drivers seat floor.
For a face plate consider making up a cloth bag with velcro on the back, add the other velcro part on the underside of the drivers or passenger seat or the dashboard that would allow you to slip the face in and slap it in your favorite hiding place, make it black and get it up and out of a casual feel search.
