At first the road noise from the back was loud. Having the rear gate adjusted helped, but there was still some extra noise. It took awhile to get to the bottom of it, but I figured out the rest of the noise.

The dealer put on one of those license plate covers. My wife was taking out a heavy box from the back and drug it over the edge. When this happened, the box broke the license plate cover. I didn't think much of it until I shut the gate and the cover bowed out. I looked closer and the cover has been rubbing on the tag lights. I removed the cover from around the plate and I lost more road/wind noise. Now that was a cheap fix.