Garmin 430 stuck on tray screw

[stapler101]

I can't remove my 430 from the tray! The radio appears to be hanging on a screw that holds the tray to the rack.
The release is fully loosened and the radio will slide out about 1/2 inch before it hands up.
I an sure that 1 or more of the tray mounting screws were not fully tightened.
I plan today to try and slide a thin piece of aluminum between the radio and the tray to hopefully push the screw in enough for the radio to slide out but the radio is so tight to the tray I don't know if I can get something slid in.
does anyone have any ideas??

 

[JimICS2452]

 

[wiley_tom]

 

[Ray93J]

 

[Dravnx]

 

[stapler101]