I wanted to put an oem nav in mine, but it looks like a lot of $ and time to get it done (http://www.xoutpost.com/articles/all-...system-x5.html). I think it will be better to put in a pioneer or, alpine, or Kenwood nav, cd, radio system in the dash. The only place I have looked thus far is Crutchfield.com. Maybe one of the vendors sell these or something better.