I am new to the board this is my first post i just picked up a 2001 x5 4.4 and it does not have nav and i would really like to pick up a good navigation system. i know there are some upgrade kits for people that already have the navigation system in the car but i was wondering what kind of options i have either in a aftermarket unit or in a OEM bmw unit? thanks for all the help in advance!!

Paul