I bought this explorer a few months ago and it only has 26K miles on it. However, when driving at high speeds like over 50mph it randomly makes a high pitched frequency sound that drives me and my wife crazy. It’s coming from the front dash, more so on passenger side. It makes the noise no matter whether cruise control, lane assist, radio, AC, or any other electrical items are on or off. Anyone have an idea of what’s causing it? I’ve attached a video. The sound is like on for a hearing test.