Hi I am new to this. There are a lot of brands out there for car audio. I am an audiophile, I know sound. Because I am a sound engineer. But thing is I don't have the time for listening all the brands of car audio. Out of these: BOSTON ACOUSTICS, HARMAN/AKG, ALPINE, PIONEER, and POLK AUDIO. Which Brand rounds best overalll?????????? And also please post ur answer with the following: Best Brand, and complete System under 2,500 for a 2004 Pontiac GTO. Thanks. You don't have to find the system if u don't want to for the car. And If any of you people answering, may happen to be a sound engineer, please let me know in answer. And also everyone who posts give me reasons why the rand you chose out of these is best.