07 expedition "howl/whine" explained and fixed ☺️👍

After dealing with the howling/whining issue on my wife's 07 expedition, I took to other RUclipsrs to see what they uploaded. To my surprise, there's no solution explained in their videos nor in the comment sections. So I decided to upload a thoroughly detailed video showing what causes the sound, why it's a little difficult to pinpoint and how to fix the issue. As always, thanks for watching ☺️👍