Originally Posted by ssangjune
I didn't purchase my E90 with a navigation system so i decided to buy my own and get it installed.
Does anyone know any great sites for purchasing one?
Any good recommendation on a brand?
Are the ones that sit on the dash better than the one that come down from the roof?
What are some security measures i can take against theft?
It's my first time, so any help is much appreciated.
This is the route I took on my e46, and it's fine for me. I suppose a similar install could be done in the e90.