I got these covers for the back seat air vents (Amazon.com), but I don't think these really go with the Highland. For one thing, I don't think the air comes out of that vent in the floor. It comes out of vents below the rear touchscreen. For another thing, the "vent" under the driver's seat is entirely covered over by the carpeting (not the removable mat, but the flooring). Any ideas from anyone here? Thank you.