Hi Skyforce,This is a very interesting project, keep up the good work!I am working on an optical system that can eliminate the double reflection shown on the windshield. All commercial products use a reflective film that one has to stick to the windshield and even then the double reflection is not completely eliminated. Here is a snapshot I took at nightA combination of what you are working on and what I am doing could potentially be a great product.I am curious if instead of showing information on the Garmin you could connect a bunch of LEDs to the arduino. This way you don't depend on the Garmin device, which I understand is discontinued and the final device is cheaper to make. Here is an example of a similar idea:https://www.youtube.com/watch?v=SUCBY6ToNPYThe notifications from Google Maps are sent directly to Pebble watch.