I have been advised that none of the small 2 inch Garmin GPS units ( specificly the GPS 175, GNX 375 or the GNC 355) will interface with a BendixKing EFIS 40 which is what I have in my Bravo. So my other option is to install a GTN650xi to replace my KLN90b and my KNS81 and KY196a.
All costing approx. $16500 installed.
I would welcome any other alternative suggestions that might be better, within a similar price range, say up to $20,000 installed.
And can anyone confirm that the smaller GPS units are not compatible with the EFIS 40.
Cheers