The Wheelmobile, the promotional vehicle for the broadcast game show “Wheel of Fortune,” will visit the Collins Center for the Arts at the University of Maine in search of contestants. Open auditions will take place in the Hutchins Concert Hall at 5 p.m., 6:30 p.m. and 8 p.m. June 21 and 22. The Wheelmobile brings read more Wheelmobile to host “Wheel of Fortune” contestant tryouts at UMaine