Crutchfield is a bunch of idiots....they honestly dont know what they're talking about and its sad considering they specialize in car audio. ANY radio will fit in a 300zx....the depth is actually a hell of a lot open compared to 90% of cars out there. doesnt matter if its a flip over face or a flip down face....it will fit. In fact it fits so well i have a Pioneer, and now putting a Alpine in it both DVD players with screen and i have the brain sitting right behind the radio.....so i'm sure depth wise you are quite alright.