Radio Dio you can listen on this page of our site. Station work in genres: Discography. Dio was an American heavy metal band formed in 1982 and led by vocalist Ronnie James Dio, after he left Black Sabbath with intentions to form a new band with fellow former Black Sabbath member, drummer Vinny Appice.. Radio Dio has a rating 5.0. Broadcasting country: USA. The station was rated by 56 listeners. Radio Dio you can also listen in the FMCUBE app for Android.