The easiest way is definitely to use the radio... if you can't, get there early for one of the speakers :-)
They have several out door speakers placed in the grass area in front of the screen so you can lay outside on the grass and watch it they are tuned into the radio station as well that the movie plays on
It comes through your car radio they tell you the station
Tune into radio
Tune in radio. They also have a single loud speaker by the projector which they use.
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