hmmmm... how about these:
short in one of the wires?
battery in remote is low?
did ur car battery die at any point?
(alarm battery drains if car battery dies then it resets to factory settings)
the "BLACK BOX" is normally (i moved mine
) located under the steering wheel column. just get on the floor look up with a flash light. u gonna ahve to move a few wires around (theres slack on them but dont pull to hard either) its up in the corner towards the fender wall.. you'll see it just look.. if u disconnect it you can still operate ur car u just wont have an alarm. the best thing to do is use the cut off switch first with ur key in the ignition start the car then pull the black box this way if ur alarm has ignition kill u just by passed it. you'll have to manually lock ur doors but u wont have an alarm till u reconnect or fix the problem