I recently returned from a trip and found that my car (which had sat in the driveway for 5 days) battery was dead. I noticed the door was slightly ajar so I figured the light had drained the battery so I had someone jump my car. As soon as the cables were hooked up the dashboard lights and flashers started to blink. They blink on and off for 15 seconds, stop for 15 seconds and start all over again. I do not have any of the light switches on and the doors are closed. The battery is going to die again - help!! Is my car haunted or is there a real explaination?