The car alarm used to shut off by the turn of the door key - that eventually stopped working. At that point I had to rely on turning the trunk key to turn off the alarm. Well, now I'm stranded! The car alarm went off and I cannot turn it off with the key. I had to disconnect the battery to stop the blinking lights and blaring horn! Of course, I could not start the car because it automatically shuts down the starter when the alarm is activated. I don't know if it is a short in the system or what, all I know is that I want to turn the alarm off, reset it, disable it... something to get me moving again. Please, please help with any suggestions as to what to do to shut it off or to repair it. Thanks.