How can I better my already upgraded system?
I just had the stock v6 system for an 04 and it was absolutely awful so I threw in 2 Pioneer 3 way 6''-9'' speakers for $105 in the back and 2 Polk Audio 2 way 5''-7'' for about $100 in the front, with a Pioneer DEH-P5900IB Deck with 22 watts output and the ipod adapter. I still want to improve the sound, and I was thinking maybe adding some tweeters, but I dont really know if that would be very easy or atleast possible since I dont know alot about audio. Also I would like to add an amp and sub in the trunk, but I cant go too big because I regularly need my trunk for hockey. Pretty much I just want something that would turn alot of heads without going over the top and sound great for tailgating at my schools football games.