Going on to alternator number 4!!!!!! For me it's been both autozone and advanced. Sick of it beyond belief! My replacements have within the span of a year. I've been told by mechanics that autozone and advanced electronics are junk. Well I'm going try an import shop next. It's the time and money that I'm wasting that really ticks me off. I drive a 1990 volvo 240 do and it's the ideal car for work and it's simple to work on. The time for replacement of the alternator is getting down to an hour. That's out and in. What really did it for me was that the last one I got was tested in front of me and it passed. Four days later it went kaput!