We just purchased a beautiful 01 X5 4.4 from original owners and absolutely love it (only 62M miles)! Have a question about Nav software and where I could get a download. We have a Mk2 current version says 2-1/30. Not sure if I can upgrade the software with this old system. Would like to find the upgrade software download and try it if it's worth it?? I am a newbie so any help would be appreciated. Thanks.