Locate the large black panel with the round vent. It will have two Phillips head screws. Loosen them with a screwdriver until they start making a clicking noise. The screws stay captive in the cover.

To remove the panel, pull up from this tab. Lift the panel with the tab located between the screws using a flathead screwdriver or your fingernail. You will encounter resistance from the plastic snap tabs that are on the cover. Gently pry around the corners on either side of the front until the panel pops up. Lift off the panel carefully.