Taking a shot here as I noticed the OP hasn't been around in quite a few months. I tried his edit and although the 750 data shows in the screen, the original GNS530 bezel and buttons still remain. Any thoughts??
Hi Bert. Just picked up Carenado's Hawker 850 and am interested in adding the GTN 750 to the panel. Thanks for your time and efforts making the Carenado products better.