The songwriter behind Keith Urban’s hit ‘Blue Ain’t Your Color’ was working at an Audi dealership in Newmarket when he got his first big break. By Nick Krewen Special to the Star This Sunday night, Scarborough-born country singer and songwriter Steven Lee Olsen will realize another lifelong dream. Olsen, 37 — and currently on Canadian country radio airwaves with his Top 10 hit “Outta Yours,” — will be making his…