I have a stereo system my dad bought me for my car, and the instructions say that it can not be installed in some Japanese cars. I have a '99 Mazda Protege. I was wondering if it would be able to be installed in my car. It is a SONY Xplod CXS-GT09HP Front AUX MP3 Selectable Sub Out EQ3 stage2 24bit DAC. That's what it says on the box. Can anyone help me out?