The recent changes to the annunciator requirements have harmonised Gama's STC with Garmin's version for the GTN750/650 and have now allowed annunciators within the NORMAL field of view instead of the PRIMARY field of view as required by European regulation.
You can find a document listing all aircraft pre-requisites and annunciation dimensions here:
http://www.gamaaviation.com/wp-conte...requisites.pdf