Hello together… I bought a Smart 451 year 2011. But would like to exchange the radio which is in it, through an original. I read on the net that was installed for this year or model the Basic Radio from the factory. Question: fits the also the Radio 9 in my Smart The Radio 9 (part number: A4518204279) is a double-DIN CD radio. And… Do you need any accessories for the AUX connection? Glove compartment? Many thanks to all already… Greetings