My factory alarm has gone haywire. It won't turn off by turning the key in the driver's door and I no longer have a key fob to try to turn it off that way. I pulled the horn relay out so that it no longer makes noise but the lights still flash for about 2 minutes anytime the door is opened. I am able to start and drive the car with the lights flashing. Any way to pull a fuse and shut this thing down? Is there an alarm electronics board in the car that I can pull out? I don't need the alarm but i sure would like to have my horn back.