Rundle Street location shown on map as that is where performances seemed to happen based on below
Info from Wikipedia
Big Star was founded in 1988 by Andy Geue, and began as a second hand shop on Magill Road in Norwood, South Australia.
At its height, Big Star had six outlets in Adelaide, including the central store in Rundle Street in the East End. The Rundle Street store hosted free gigs in the basement every Wednesday evening, and many in-store appearances by bands such as Blink-182, Regurgitator and They Might Be Giants.