Shae:
I am not seeing the problem, the wheelchair symbol is on top of the turning radius fill (the fill is set under Model View Options > Options for GDL Objects (ArchiCAD Library 14) > Show Minimal Space of Furnishings and Doors). The fill for the wheelchair itself is set in the library part (Wheelchair Man Settings > Appearance > Fill Type). Why don't you post an image of what you are seeing and the two dialog boxes (MVO, object)?
David