gnc300xl

Came out of my own airplane for a panel upgrade. Worked prior to removal, I have witnesses that are registered users here as well, if needed. 14V box. Display is 100%, no dead pixels. Never had any problems with the radio or any buttons sticking. As you can see, some of the buttons are wearing...

I recently attempted to get a firmware update on a old Garmin GPS150 TSO. (I see other POA members discussing similar issues) The avionics shop near me couldn't help, suggested I call Garmin. The tech at Garmin (nice fella - spent 45 minutes on the phone with me) confirmed what I alerady knew...