2007 Mazda 5 Cabin Air Filter

What does the undercover look like and where is it located and what does the MOS FET connector and evaporator temperature sensor connector look like/

It is a decorative piece no one can see unless your working under the dash / below the glovebox. It just snaps on / off. The MOS FET connector is just an electircal pigtail connector and is only equipped on the automatic a/c style. Pics below should help you ..