The guys at Precision Installations in Blakehurst. Did a great job of fitting my deck to the factory amplifiers so that all my speakers and subwoofer are still operatable, a job that a lot of other places didn't want to do. A little on the pricey side but they did a good job, and it's amazing what can be pushed through the stock speakers.
Precision Installations 996 King Georges Rd, Blakehurst NSW 2221