>> Seeking advice. On a recent trip I had a noise that I have had a few times now - always when driving in significantly high wind - seems like it depends on the angle of wind to the van.

I had a similar type sound that turned out to the the grill itself. The
fasteners where not holding the grill tight and when the wind hit it just
right, it would vibrate pretty loud. I put some foam pieces in strategic
locations to make the fasteners hold tighter and now its quiet again.

HTH,

John