IF I buy the 6 disc in-dash cd changer from a 01-04 X and replace the single disc player in my 2000, I was told about the different speakers in the 2000 and 01-04 models (4ohm and 2ohm) and how the swap will result in it being much quieter. First, can someone please explain the 4ohm/2ohm thing? and second, does anyone know a way to rectify thi without spending an incredible ammount of money? I'm a teenage boy, I enjoy loud music, but i don't want to spend a billion dollars upgrading my sound system It's fine like it is, I just want that 6 disc changer.