l purchased the part from a Forum member on another site....so l'm SOL.......As for the GPS satellite location, the cd-based version, has a section called GPS information, the DVD-Based one does not....that's why l have not been able to find it, unless it's under another location............Any idea's, do you think it has something to do with my ML being a 99.....but my DVD NAV is 03..l don't get it.....