I had a very hard time finding the same thing. I bought one from circuit city ages ago, and it was a one peice pocket, that screwed in from the sides. Then when i got my alltrac i went looking for the same thing, and they have a new model. Its like a bag full of parts that snap together, even the little bolt holes on the sides snap on. Bah! decided to find something better.
Went looking all over, audio stores and internet only thing i could find is the same one that is a bag full of pieces, ended up just getting that.
I too, just want one that is a blank plate, with no pocket. No luck finding one on the internet even.