I am not sure of the point you are trying to make.Dont the Aborigines live in central Australia?
To say "Aboriginals live in central Australia" is not an accurate characterization of where Aboriginals live.
Aboriginals live across the entirety of Australia, including in each major metropolitan city.
There are cities, towns, regional and remote areas where their populations are higher, but it is a bit too difficult to explain in writing.
It is true that the percentage of the population which is Aboriginal is higher in some remote areas.
The first map below shows the Aboriginal population in each state and territory, and their percentage of the total population.