My '09 Crown Vic with the police package (78k miles; 2100 idle hours) started making a whining noise last week. It speeds up and slows down with the engine rpms. Here are the symptoms that it has been making: 1. My electric fan will turn on right after I start the engine cold. It usually only engages when I turn on the A/C, which I have not been using. 2. It feels like the A/C compressor is engaging even when the HVAC selector knob is in the "off" position. 3. I took the car in to my mechanic and he couldn't find anything wrong with the A/C compressor at all. (I thought the compressor was making the whining noise) 4. Yesterday when I tried to start the car after work, it would not turn over. I was able to jump the car without issue. The battery was replaced in April of 2013. So, does it sound like it is the alternator? It is hard to pinpoint where the whine is coming from, but the alternator is the likely suspect in my mind.