I bought some Winter Blades for my wife's 2013 Explorer. Took them home only to realize the have some oddball mounting clips and the Aanco Winter Blades I purchased do not look like they will work. WTF? Do I need to purchase new blades from the dealership or am I missing something? The OEM blades seem to have a molded clip that attaches to the wiper arm. The new blades have nothing similar in the package. Please help me figure this out. Thanks, Jim