I installed a new infotainment system in my 355 and just wanted to share here. Its the ferrari one and works very good. My pics dont do it justice but the backup cam even installs right into one of the license plate lights. It looks totally factory.
Look at the link below for better pics of the unit.
I bought a convex mirror from judd10 on F-chat. I can't remember the original source of the mirror before he had it cut to fit, but it is a wonderful aid. As a FWIW, I'm assuming everyone here knows that you should not see the sides of your car in your side mirrors, but just in case your Daddy taught you wrong, now you know.