Retro fitting audio modules in a 2009 E-Class

[GraemeG]

Hi All,
I'm sure this has been covered a number of times but I have a few questions regarding retro fitting some of the audio modules to my 2009 E-Class coupe. It's generously specced everywhere except entertainment. Is it possible to fit some of the modules such as USB/Media Interface or DAB?

Thanks in advance
G