He is a regular panellist on RTE1's Today Show and freelances on Newstalk, Classic Hits, and East Coast FM.
He was host and producer of the late-night radio chat show FM104 Phoneshow, alongside co-host Jeremy Dixon, from 1997 to 2013.
[1] In August 2013, Kennedy and his co-host and producer Jeremy Dixon resigned from FM104 to take up a job offer with the rival station, 98FM.
[2] Kennedy presented the morning phone-in show Dublin Talks on 98FM, alongside Dixon, from 2014 to April 2021.
[3] Kennedy was described as a "shock jock" by the Irish Independent in an article regarding his drunk driving conviction, for his controversial and contrarian on-air persona.