2003 sable alarm problem

I have a 2003 Sable with a factory alarm. It goes off randomly (headlights blink and horn sounds) while it is parked. It doesn’t matter if it is in the garage or outside, as well as the weather conditions (I live in MN).

I have read that you can splice the factory alarm disarm wire and ground it out. Is this the best option or do you have another opinion on why this keeps happening?

Thanks
Chris

Quick question...are you within key fob range when this happens by any chance?

No I am not in range.

Here are two things to think about before splicing or removing any wires or hardware.

1) Are the contact points (in the door jams) free, clear and smooth operating?

2) The alarm control box could have moisture in it (doesn' t have to be raining on the day they go awry). Once wet, it'll stay that way for a while.