i have a question about the loudness in different parts of the car.when im in the drivers seat i can feel the bass in my throught and nose when i breathe.today my wife drove me to the store because i had been drinking and the bass was different. i felt the bass in my seats a whole lot (i dont as much when im driving) but it wasnt as loud and didnt effect my breathing. why would this be. the seats are in the same position. the subs are sealed and centerd from the sides of the car and its in a jeep. its not a problem but im just wondering why.