I have a 2000 Grand Marquis, mileage 42000. The interior light comes on by itself. It comes on, stays on for about 30 to 60 seconds then turns off. Sometimes this happens several times a night. I don't have the timer turned on for the headlights because of this. I have the only remote and no one is near the car. I pulled the bulb from the front interior light, but not the back ones. And now my battery is dead. Any suggestions or recomendations?