@CentralS
Forgot to thumb up this, like nice safety upgrade.
Many pilots were reluctant in (cloudy and/or low visibility) day
use of nav lights...
Hope that retrofit is possible too
This has been improved at the beginning of 2016. The nav lights do no more change the backlight level of the EPM.
The new range of adjustment covers the day and the night ranges of the former version.
The dashboard illumination has also been improved.