Sandero without radio

Hello, I’m going to buy a Sandero Ambiance soon, without a radio, because I wanted to install another one (with MP3 function etc). Now I wonder: are there actually devices for the speakers in the doors? Normally, there are corresponding devices for the speakers in the door panel, so a kind of cover at the place where the LS belongs. When an Atuo is ordered with LS, these covers are simply removed; if not, are they left on it. Is that so with Sandero? So that I could easily install my own LS? …or are speakers already installed, even if I order it without a radio? Should I give it… thank you for your help! Marvin