My 72 k5 will be pretty much finished soon and I was going to start working on a sound system. I have NO KNOWLEDGE about speakers amps ..anything. Are there any useful guides I can look at to get and idea of what everything is. Should I buy the stuff myself and then have it installed by circuit city or some other place. Lastly does anyone have any brands they like or ideas for speakers and amps. I want it to sound really badass so I can play metallica, Ad/Dc, Megadeth....all that good stuff really loud so the people outside will be like " damn teenagers". Im looking to stay under around 600$ just for the speakers and amps.