Confusion on what's going to fit in my car

Okay so I've got a few questions and figure this would be the place to ask it.

Anyway I've got a 2006 Chevy Malibu and I've currently got this installed in my car and this to convert it to single DIN and make up for taking the cars computer out.

Anyway the original size is double DIN and different websites tell me different in dash GPS units fit. I'm currently looking at this one from Sony but will it fit? Crutchfield only shows me the single DIN ones with the screen that comes out of that but I'd prefer one that's built right in.

I'm not very knowledgable about car audio, only home theater/building computers so could someone help me out?

Thanks