Simple fix.
In the panel folder - panel.cfg file (open in Notepad)
see [window.01] (not far down the page)
Replace the text so it reads like this this
[Window01]
size_mm=246,296
position=8
visible=0
BACKGROUND_COLOR=16,16,16
ident=RADIO_STACK_PANEL
gauge00=Airbus_A321!popup_radio, 0, 0
(This a/c uses the default A321 gauge so I simply copied the panel.cfg entry under radio stack in the a321 panel.cfg)
I posted the update as you won't be the only person irritated by the omission of a radio stack!
Quote:Don't know why people upload incomplete aircraft...
Have you uploaded anything?