One day when I used the power lock switch on my door the locks didn't unlock instead the parking lights flashed and i tried it repeatedly and it did the same thing. So I started driveing and i noticed that my speedometer was not working and the transmission was shifting really hard, also the odometer had not turned on. So i was running out of options so i took it to a friend of mine who works on cars and he told me to take it to this car audio place, because it was an alarm problem and he didn't do alarms, so i took it there and they reset the alarm and it worked fine for about a day, then today it started doing the same thing, and i have since drove my truck out of town and just wanted to know how to either disarm the alarm permenatly or reset it until i can fix the problem with a new alarm. The truck is a 1994 F-150 351W 4wd.