I was recently told by someone who does regular installs and who used to work for a shop that the ideal audio setup in a sedan for pure sound quality would be to run components up front and just midbasses in the rear...not co-axials. Does anyone know anything as to the reasoning or if this is the general rule of thumb? I don't mind buying either or for the Sube, but I just don't want the rear passengers feeling cheated, ya know? I have never been in a car that had just midbass speakers in the rear, just full range. I know the WRX isn't the best car to talk about sound quality with...I was just wondering if some of the real knowledgable audio guys could step up and give me an opinion here.