i have an alpine 9857r, they have one mother of a white box which is attached to the back, making them a total bitch to fit!. i took mine to a specialist and he fitted it, the bottom tray ALMOST goes in all the way but it sticks out. way less than the one in the pic but still a teensy bit. if i was clever, i'd either buy a single DIN plate and sacrifice a shelf, or cut a hole in the back of the shelf for that damn box to sit in