E46 16:9 nav bluetooth phone volume question

[Eggle]

Is there a way of turning up the speaker volume on bluetooth phone calls via the 16:9 sat nav unit?

[B3Svert]

Normally the standard volume control works, either on steering wheel or the stereo itself. Recently connected a new iphone and had to use the volume control on the phone instead though so maybe try that too.

[Eggle]

Thanks
I am using the 3G iphone in a B3s saloon, and was worried I couldn't do the volume from the wheel.
All fine now.