Hi, our Family has a 2005 Explorer. The rear windshield wiper quit working so we replaced the wiper motor. The rear windshield wiper still does not work and the windshield washer is not working either. We can hear clicks inside the black box attached to the rear windshield motor when we try to wash the rear windshield and we can also hear clicks when we change the intermittent switches on the turn signal arm for the wiper settings. Any ideas where to start looking now? We are lost. Thanks for any help.