MKIV Absolute Nav Volume

[IslipM5]

I have tried all the variations I can find, but cannot access the nav volume or speed sensitive settings.

Both the MkIV and 16:9 have been fitted to upgrade the factory fitted MkII system.

Any suggestions please!!!

[IslipM5]

Downloaded the 2004 Owners Nav Manual from http://www.x5world.net/, and there is the setting for 'Nav-Min' - BUT not in the European version it's not!!

Does ANYONE know how to set the Nav Volume independently of the radio in a European MkIV computer / 16:9 monitor?