M78

Didn't find a thread for this, so here goes:

Is it possible to change following settings via vcds or from a hidden menu?
-lower the re-fuel beep volume?
-get the stereo volume level display to show somewhere when adjusting it?
-lower the speedo & rev counter brightness? Now it is either bright or very bright when adjusted from the brightness button. Of course this is only a problem when driving at night.