Ok, so I'm not crazy...
I'm going through the same thing with my bass settings. I've only had the car for a few days, but I'm used to the high end system I had in my last car.
IMO, the factory system will sound like an awesome factory system to 75% of the people out there. Unfortunatly I'm in the other 25%.
I'm already looking into ways to refit a 10" sub into the OEM box.
(please don't ask my wife about the crazy part)