Hi, I am new to the BMW world, This is my first BMW after years of waiting. I have just got my 2012 3 series (F30) sport and am delighted with it. The only thing i wish it had was a sat nav. Can anyone enlighten me as to how easy they are to fit and what is needed. The first one i am looking at is: http://www.ebay.co.u...=item3f3a18949c Secondly: http://www.dynavinst...30-cic-d99.html Any advice would be most welcome.