It does sit flush in the dash. The photo doesn't show the finished state. It just shows the layout before the holes/openings were cut for the instruments and SIMRAD..
Just took delivery a week ago of a 2017 190 SPXO. Had a SIMRAD G05 GPS/plotter installed by the dealer. Absolutely perfect. It went in the center of the dashboard. The rpm gauge (left) and the MFD (right - fuel, trim) stayed. The speedo (center) was ...