The next station to join the network was FOX FM in Melbourne in 1986, eventually to be followed by Sydney's 2Day FM and 4BK Brisbane for which the company was successful in converting to the FM band in 1990.
B105 FM (call sign: 4BBB), a Mainstream CHR radio station broadcasting out of Brisbane, Queensland, Australia
In 1994, Dark started at Brisbane radio station B105 and worked for two-and-a-half years conducting on-air stunts under the pseudonym The Bush Pig.
After appearing on Big Brother, Dening appeared in radio advertisements for local Brisbane stations 4 BC, B105 and Triple M.
Whereas originally Dunn performed on B105 as Agro, over time he came to be credited as himself.
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On 21 September 2005, Dunn announced he was leaving B105 and in 2006, he and Agro began to present on the "Zinc Morning Zoo" with Ian Calder and Courtney Burns on Sunshine Coast FM radio station "Zinc 96."
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Dunn was an original member of the B105 Morning Crew, along with Donna Lynch and Ian Skippen when the station was first launched on the FM band in 1990.
When the Austereo network decided to syndicate the show nationally, Phil and Jackie O moved to Sydney where the show was broadcast locally on 2Day FM and across the other 5 major Australian Radio Markets owned by Austereo, FOX FM Melbourne, SA FM Adelaide, B105 Brisbane, NXFM Newcastle, and FM 104.7 Canberra.