Thank you for the kind words, Sir!
Yes, the F sign lights up in the display and when I press the second button to complete the operation... it does nothing. Even the "F" does not dissapear. If I press the "F-Key" again it will dissapear.
I will attach a small video I have made:
http://www.ares-ops.com/ares_public_vids/IMG_0866.MOV
(sorry for the cam angle...)
If squelch Level is "0" I can hear a humming noise from the speaker once I press the "GR" button. So, logically it must have an effect and it seems to be working...
If you could talk me through taking the radio apart it would be great. I would appreciate it very much.