You use CD's on your M5. You can go directly to www.Navteq.com and get the entire US for $199, or you can just get your region for $129. This isn't bad. It takes a bunch of work to keep them up. Copying the data is illegal, and someone needs to encourage Navteq to make the updates that will be bought by us. It is a small price to pay, in my opinion. They were $199 each less than 2 years ago.jhendershaw said:My 2001 M5 didn't come equipped with the proper navigation for where I live so it is pretty much useless. I looked into buying the CD's and the dealer wants something like $300. I was wondering first of all, if a 2001 requires a CD or DVD? Also - Can these CD"s be burned to save a couple bucks? If so - I'd love to send someone $20 or whatever you think is reasonable for a burned california / nevada disk. Any help is greatly appreciated.