Same company isn't it???

I thought that VDO Dayton was a subsidiary of VDO Siemens.

If you search the VDO Dayton site they also claim that they make the OEM nav system for BMW.


EDIT: Yes, just as I suspected, VDO Dayton is a brand name of VDO Siemens. See here:

http://www.siemensvdo.com/press/rele...0411_002_e.htm

So technically I was correct (but then again, so were you)!