Sorry, it don't got a 4.6 motor in it. I got a Haynes manual for the car/truck/suv, but it don't say nothing about it.
it's under the right side cowl cover. just remove the cover and you will see it. BTW I am moving this to general auto tech.
Finally got around to doin it. It was easy. For the record there was something in the Haynes Manual about it. They just didn't call it a "cabin air filter". Found info about it in the "Cowl Removal and Replacement" section. When I bought the filter, it had instructions too.