Thanks, @red750! I haven't been to Australia in a few years but I really enjoyed it. I miss how good the coffee is there compared to general stuff in Chicago. I currently work in IFC, but I've worked for a major OEM as a avionics engineer as well. I came around to see if I can help any GA aircraft owners who want help understanding how to update their aircraft equipment, is there a section for that sort of discussion regarding FAA part 23 modifications?