If you're looking for a professional install (not DIY) head to see Warren at BDL car stereo in Fyshwick. If you like, you can tell him that Anthony Spink referred you and he will look after you, they are the best installers in Canberra, high quality of workmanship.
http://www.facebook.com/bdlcarstereo
If you check out their page they have a lot of pictures of installs they have completed, as well as some of their demo cars.