Shift 2 works the GPS295 just fine but that doesn't light up the GPS in the center consol of the vc view or side mounted GPS (Depending on your very), also works but you have to turn it on separately: On the VC GPS, the most lower button, left side of that gauge is the GPS on/off button. Click and that turns it on.
(Straight port over from FSX: Effects, Gauges and Simobjects. Nothing fancy about this one. (Note, uses the old gaugesound.dll (for gauge click sounds), so quiet gauges while regular sound incl flaps etc work fine.
Norm