hey guys
i recently installed some 6"3/4's into my front doors, which obviously really help out. i'd like to boost my sound quality even more though, and am wondering what the most logical course to take would be? I've been told that replacing the rear 6x9's is kinda a waste since they're just "filler noise". is this true?
i was thinking i need a sub/amp but have no idea where to begin on this. thanks in advance!