Hear a clicking sound just below the rear lock/unlock switch. on 2003 Lincoln Aviator

The clicking sound is sporadic and I think it is some kind of electrical switch causing the problem.
Any ideas what can cause this?

Asked by for the 2003 Lincoln Aviator
it is the blend door motor for the rear heat/ac. mine does the same thing. pert is about 36 bucks at partsgeek it is a bit of work to change yourself.