I have an 05 WRX that I got used with 22,000 miles on it and in the last month or so I noticed that if I leave my A/C fan knob on when I turn off my car that it drains my battery. It also happens if I am driving. My ABS light will come on and my CD player will turn off. Anyone have any insight or have had the same problem in the past that might be able to help. I would really apreciate it.