Our Garmin (Apollo) SL40 #2 COMM died while it was sitting in the panel waiting several years for us to finish the Sportsman. Finally, in January 2021 when Doug was trying the transmit and receive functions of the SL40, he found it dead! After pulling the radio from the panel, he smelled something had burned. We have no idea what happened, but we were out of radio since the warranty had long ago expired. So, Doug suggested we replace it with the much more capable Garmin GTR200, for about $1200. This radio has all sorts of neat new features as well as being shorter and lighter than the SL40. But, the tray that came with the new radio had holes for the attaching screws about half a hole displaced from the SL40. What a pain! So, as you can see in the photos, using a long, somewhat flexible #30 drill, Doug, with Brutus's help, managed to drill new holes which worked! Doug studied the instructions from Garmin and programmed our new #2 COMM radio. The good part of this unexpected expense is we have a #2 COMM with updated features. The GTR200 has a 2-place intercom which we don't need since we have a PS Engineering audio panel with a four-place intercom and Bluetooth in the panel.