look if you take of the door cover you will se a BIG white plastik thing that holds the speaker and move speaker out a bit so the window dont touch the speaker...
take of the white fucking plastic and start cutting...if you have a dremel if would go easy.
i had to cut of a dirt shelter to to fit my jbl speaker
the orginal mounted spekar in my picanto ex was 4 inch and 25 watt maximum...really shitty