Annoying sound in the cabin w AC on / Video link

[Kmvguy83]

Hi,
I just bought a 2011 X5 yesterday and it has this annoying sound in the cabin.
This noise is only heard inside the vehicle.
With the hood open listening in from the engine compartment, it's quiet.

I did some digging around the internet but I couldnt narrow it down to what it was.

But I found an youtube video that sounds 100% like my car.
Here is the video link.
https://www.youtube.com/watch?v=ZH6hZHZQyyQ


Anybody know the fix for this issue?
I do have extended warranty but it's for the powertrain and I don't think this issue will be covered.

Thank you for the help!