Hi
I currently own a BMW 540 1998/9 with what I think is a MKII nav system. I'd like to upgrade it as the current CD in it dates back to 2000 and is now quite out of date. I've seen lots of downloads on this forum - is this for the map or just a software upgrade? I can buy a new disc for it from NAVTEC but its about £80+ - does anyone know of a cheaper solution?

Thanks
Matt