On 20 February 2006, he began presenting "Breakfast" on 702 ABC Sydney, replacing Angela Catterns. His hosting was described as having transformed ABC 702 into a "...science and maths, women's sports and soft rock loving place to be..." On 6 December 2013, Spencer hosted his last breakfast radio program for ABC 702, concluding 14 years of radio broadcasting at the age of 44. His farewell live show included Alex Lloyd performing a rewritten version of his song Amazing. For his final radio survey, Spencer was ranked second in the breakfast slot. He was replaced on ABC 702 by fellow Triple J alumni, Robbie Buck.