In the mid-1990s, due to the AM stations' dwindling audience and the increasing popularity of the music based FM stations, ARN (owner of 2CC and Mix 106.3) and Austereo (owner of 2CA and 104.7) merged to form a joint venture ownership of both FM stations, selling off 2CC and 2CA to the Capital Radio Network.
In July 2011, Southern Cross Media and Austereo were merged to form Southern Cross Austereo.
In March 2010, Austereo announced that Robinson and Chris Page will host the Hot30 Countdown replacing Tim Lee and Biggzy, they commenced on Monday 15 March 2010.
In 2010 and 2011, Argenti hosted the national drive sports radio show 'The Home Straight' with former AFL player Peter 'Spida' Everitt and former NRL player Scott Sattler on the Southern Cross Austereo 'Localworks' network across Australia.
:For the Brisbane Austereo Station 4MMM, that used to be called FM 104, see 4MMM.
In 2004, Helliar was signed to do the breakfast shift on Austereo's Sydney station 2Day FM with Judith Lucy and Kaz Cooke.
Sustagen have a sponsorship deal with the Austereo radio network in Australia that promotes the brand on podcasts of the network's radio programmes.
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.