ultra start troubleshooting

I have a XR-2280 Ultra Start alarm in my 04 Dodge Ram and each morning between 3:00am -  5:00am the alarm turns on and I do not know why, can somebody tell what are the reasons for this happen?  tama1980

could be moisture in the door pin switch, give them a shot of wd40, if that doesn't work i would start by disconnecting the hood swich try it out and go from there

This problem start when I conect the relay for domelight.tama1980

Pretty much every alarm has some way of telling you what "zone" was violated the last time the alarm went off. It's probably in the owner's manual, but usually you count how many times the alarm's LED flashes after you disarm it. So, after learning exactly how to do it in the owner's manual, arm the alarm, wait until it falses again, and then see what zone it was............door, hood, trunk, shock sensor?