My problem started just like yours and then, several months later, escalated out of control. Now, most of my accessories cut out sporadically (at the worst times)... wipers, blowers, lights, radio, and door locks. And, the car itself cuts out while running at full speed. At this point, it's definite that if I turn on the wipers or a fan, the car will soon after cut out. But, if I sit one minute and restart, all is well... for awhile. Don't wait until you're in a rainstorm on an interstate to get this fixed. SK