So I’m an 18 year old and I just bought my dads duramax (crew cab). He had a somewhat decent sound system put in, but my teenage hooligan metallica addicted persona would like more. I’m not an audiophile, and I think the distorted loud stuff is dumb. I want the loudest possible setup I can without turning the entire interior into speakers, however I want to be able to actually listen to and understand the music still. I like quality stuff and I’m willing to pay for it. I was thinking subs and tweeters and mids (or highs and mids combo unit) in each door, as well as some extra speaker in the a pillar on the dash. I’m not fluent in audio language yet so bear with me. Thanks in advance.