Hello Joe, David and I didnt find the Autozone, we stopped at a parts place in Ocala and the tester said no output from alternator, he gave us directions to a Pep Boys, which is the only service faciltiy open on weekends, good thing to keep in mind for future, David went on so I never heard how it turned out. I think the ac probably runs direct off alternator output, so no alternator no ac.