It is said during the beginning of the episode that John Perry's group will be playing at Anderson Air Force Base in Guam. However, the announcer at the Guam airport announces that the flight is arriving from Andrews Air Force Base, but Andrews AFB is in Maryland.
When Steve is driving down the road and John Perry's song comes on the radio, he turns the volume up. At that time, the AM radio is set at about 700 on the dial. Later during the song, Steve turns the volume back down and the radio is now set at about 1000.