Spec differences and Retrofitting MIB

Good Afternoon Ladies, Gents, LBGTQ+ etc.

Just picked up another Superb.

I had a 67 Plate, Superb SEL Exec 2.0TDI 150 DSG 

Now got a 65 Plate, Superb S 1.6 120 Manual.

Don't really miss anything from the SEL spec, as it's had cruise and parking sensor specified.

Only thing is it has the standard Radio with the small screen, voice control seems to be deactivated. Glovebox is different there's a slot for the car manual rather than the SD Card reader for the Navigation/DVD Drive.

Anyone know how easy it is to fit, I know you need the unit and the screen. I have OBDEleven Pro to code. 

Is there a difference in Speakers between the S and SEL, I did not have Canton but the SEL and my B7 passat seemed to have Bass Reflex boxes and the S seems to have flat speaker grills.