Vaught Corsair Radio Tuning

Hi,Has anyone found a way to tune the radio(s) in this plane? The needles turn, indicating that the radios are tuned to something, however I can't find any way to set in any VOR or ADF frequencies.I do hope it's possible because I love flying the plane, but it's almost impossible to know where you are without utilizing FSNavigator - but that's almost cheating.John