Howdy fellow Fusioneers.
Yeh, my fan ia noisy too. I even had the salesman show me another Fusion to see if it was the same way. Yep,,, they all do it.
Best I can tell is is appears to be coming from the defrost vents. I guess it is noise as the air blows thru the heater plenum,, I don't think there is any way to fix it.
When the blower is switched to anything other than a heat position,, it doesn't seem so bad.
Wish I had turned the blower on during the test drive.
Happy Motoring