Returned to the dealer after the breakin and had a Factory sound system installed. AM/FM Cassette with 6 disc changer. Under seat powered sub-woofer and 6 speaker system. It sounded okay.First modification was Winter rims and tires.Rota SDR (Prodrive Copy)in Bronze with Continental Extreme Contact 225WR-45-17's. Dry traction was okay but wet and snow was unreal. Also, added a Cosmo Racing Cold air intake. No tune at that time but a great BOV sound!There is a very cool thing about living with AWD in Nebraska and that is snow does not ruin you day. If you have never drove your WRX in Snow go find some..It's the most fun you can have with your shoes on!! One fond memory was a very snowy day in February 04 when I was on my way to pistol range for a match. Walking in the door the owner asked my why I was smiling, I told him "you need to drive that car in this weather it's awsome!"