I have a 1991 300E. I just got it and something seems to be wrong. About a week ago I tried to turn on the car and the battery was dead, so i jumped the car and all seemed fine. This Friday I went out with some friends and everything was going smooth except for this clicking sound coming from the passenger side dash or floor. And when i parked the car and turned it off the head and taillights would keep flashing, even when the car was off and the lights were off. I got out locked my doors and locked the trunk and they turned off, but then the locked doors unlocked. So i locked those again and everything was still off. Later that night I came back and everything was smooth except for the clicking sound. Then on Saturday I went out again and the clicking sound was there again and the headlights kept flashing whenever i turned the car off. When i came back to my car saturday night my doors were unlocked and the car wouldn't start. So i got a jump and then everything was back to normal. Something seems to be draining my battery, I have a feeling it is the anti theft system.. How would i turn this off? Can anyone help?