I have a 1991 420sel (gas) that I inherited through my father. During the last couple of years, because of age the vehicle has been neglected. I am now having a problem with the alarm/door? After extensive rain here in Tampa, the vehicles' alarm was going off every time I opened a door and would not stop. I had to wait it out. The vehicle started with no problem. I moved the vehicle to another area in the driveway same thing. I waited it out. I then went to start the vehicle the other day with no avail. I even disconnected to module to the alarm system. What else can I do, I need guidance. It turns over but will not start.

New to a used vehicle......Lauren