Who here has replaced their factory stereo system? I replaced my headuint with a sony CDX-GT300 and speakers with 4 polk 5x7's. With the new headunit and factory speakers the stereo sounded great, if a little tinny. With the polks the sound is much cleaner, with well defined mids and highs and more accurate bass. My only complaint is when using the aux input with my ipod the highs on some songs get staticy. Ive tried changing the equalizer settings and turning down the ipod volume, but the static persists. It is faint but noticeable. I never noticed it with the factory speakers and it dosent do it with my sirius when connected to the same input, just the ipod. Ive been wondering if replacing the 3.5mm cable with a Monster gold plated one will make any difference.