I did a search and found a few threads from 2 years ago regarding the issue. None really had a resolution to the issue. I was just wondering if anyone had the issue fixed. It just recently popped up on our vehicle. My wife is the primary driver, but I usually drive it once a week. I just noticed this noise earlier this week. This is not my video, but it is the same exact issue I'm having. The noise starts about :14 seconds in. For me it happens when the vehicle is coasting. The noise also doesn't seem to start until the vehicle is warmed up. I also turned off the hvac and radio and still get the noise.
Jeep Grand Cherokee (WK2)
Vehicle is a '12 Summit V8.
On a side note, I did just have the driver side axle replaced because the boot was leaking fluid. The dealer replaced it. The noise started about a week after this, but it could also be a coincidence as the other vehicles were low mileage that had the issue. My vehicle has a little under 35k miles on it right now.