I do not have a ford but the location of that air inlet is .. A body builider option per the folks who made mine
On the passanger side floor, under the dash is what appears to be a heat grill, Just like you have in your house... That's it.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times