The station's new announcer, Thomas van der Lugt, has been winning fans and acclaim with his programme, The Special Olympics Show with Thomas.
Mr van der Lugt (25) has Asperger's syndrome, an autism spectrum disorder which can lead to difficulties with social interaction.
"I love doing the show. It's really fun and a cool thing to do. I just let people know about the Special Olympics and intellectual disabilities," he said this week.
"Asperger's hasn't held me back. I know it's there and that I have it, but I try not to let it affect me. I've accepted I've got it."
Asperger's affected him in subtle ways, he said.
"I might be doing something and then someone asks me to do another thing and it's too much. Large crowds can also be a bit weird."
Mr van der Lugt is an accomplished sportsman, winning 10 New Zealand skiing titles and gold and silver medals at the 2009 Special Olympics World Winter Games in Boise, Idaho, in the United States.
In November, he was a member of the Otago Special Olympics football team which won the inaugural transtasman championship in Wellington and he is also a Special Olympics "global messenger".
He emigrated with his family to New Zealand from Ireland in 1991, when he was aged 3.
"We later came to Dunedin, because we were trying to find a school that would be suitable for me. I went to King's High School, which was great."
Mr van der Lugt lives and works with the Mt Cargill Trust, which provides residential and respite care for both children and adults who haveintellectual disabilities.
Oar FM manager Lesley Paris said he had inspired listeners with his humour, openness and optimism.
"He's taken to radio broadcasting really, really well. His show is so honest and he's got so many great values. He's very passionate and positive and is a great mentor for all people."
The Special Olympics Show with Thomas is on Oar 105.4 FM from 11am to noon on Wednesdays.
