That depends. I had to change the whole console in mine. If there are no buttons there to begin with, that piece is molded on there. At least my 06 was that way...
My car: 2006 Infra-Red ZX3 SE, SAP
My Moms: 2009 Sangria SES Sedan
My Bro's: 04 Silver ZX5 SVT EAP
Team Duratec # 136