Front. Outlet duct. A channel that directs fresh Air into the passenger compartment. HVAC Air Distribution Ducts located under the dashboard. HVAC Duct Adapter. Heater Outlet. Cabin Intake. Center extension. Chamber Assembly. Cooling. Defroster. Distributor. Floor. HVAC Adapter. Inlet. Instrument Panel. Outer. Plenum. Side. Vent.