I initially found that on the Golf I have a the moment, in fact a criteria I originally had was a 'night mode' on a model, so I could darken things down as I also don't like glare, however I am finding myself more accustomed to it now (until I switch to the A4 that is)!
IIRC the dash dim function by the lights also controlled the door / cup holder brightness? Otherwise there is some settings in the MMI however they are not granular.