Questions about a car radio (Peugeot 307, on-board computer etc.)

Good evening Motor-Talk Community, I picked out a car radio on Amazon, which I like to buy and install in my Peugeot 307 140ps 2.0 year 2005The radio:http://www.amazon.de/…/ref=asc_df_B00ICIR3MA27742862?…My questions are now, 1. Is the installation in my Peugeot even possible? I’ve already read a lot that the on-board computer is no longer functional, or that the engine no longer starts with a single small error. what exactly is it?2. What do I need to install the radio?3. What information can my on-board computer display?4. Can I install my standard car radio at any time and use the full functions of the on-board computer? Thank you in advance With friendly greetings Jinko