replacing a/c control

I want to replace the a/c control panel on my 2002 malibu, but I don't know how to replace the trim panel around it. Can anyone help me with this?

you just cant replace the trim or are you not sure about the whole thing?

the trim should just pop off after you get it off unplug the cigarett lighter
if it is automaticly switching to fresh air you should try cleaning it out clean all the circuits and it should work fine