Does anybody knows how can I change my radio. I cant find any screws

 

Pull out the little tray directly in front of your shifter. You will find screws that will let you remove the assembly around your shift assembly. You should also find that you can flip up the vents directly above the radio where there might also be screws (I don't recall exact details on this). Eventually you will find that the radio and climate controls will come out as a unit by going in through the top and bottom.

 

I did but the top part , just over the ac vent is not comming out. Is there a screw or I should pull harder?

 

Use a prying fork covered with cloth and insert it between the plastic and the dash vinyl. Slowly pry those clips off. It will take a certain amount of effort.