Well, it doesn't look like the Phantom Face decks have a removeable face from the pictures, but the relase might be on the side. I can agree with you that hidden faces do not deter theft all the time. The FF will look like a normal alpine HU with the face removed though. when the face is hidden most people would think it was just an HU with the face removed. Some people will break in anyays I suppose. As for the Alpine working with the Mobile Mayday I can't say either.
All I know is it might have a built in phone from the pictures I've seen, so maybe it will call the police if it's getting stolen?
