E60 Disc for Sat nav? and Bluetooth

[pkrplyr]

Hi,
sorry if this has been asked before...
Today I left a deposit for a 2004 530D, the seller said the sat nav disc is lost.

Is is possible to buy one from a Main dealer or do I have to go through the internet?

Also how difficult/ expensive would it be to get bluetooth?

Thanks for your help in advance!

[M3Charlie]

You can buy one from a dealer but they cost about £200. Have a look on e-bay as the discs on there also have speed camera detection on them and are a fraction of the cost. if the car has a media pack fitted then it will have bluetooth