Originally Posted by nick78ru

Hey guys! I ran into this odd problem that started a few days ago. I did find a few threads talking about similar issues but no actual solutions.

Symptoms:

All of this happens at random times and in different combinations:

1. Lights (side markers/parking lights etc.) flash w NO alarm sounding (can be disabled w a fob by lock/unlock but other times it causes issue #2).
2. Alarm randomly goes off for various periods of time (sometimes it can be disabled w a fob, sometimes not until it stops by itself).
3. Car acts normal and doors unlock w a fob but opening the door randomly causes issue #2.

-While the alarm sounds I CAN start and drive.
-There seems no to be no water in the trunk
-Battery is only 6 months old (Interstate battery from Firestone)
-Fob batteries were replaced (was my first thought) to no avail.

Alarm system is stock.
No electrical mods besides LED/HID lights that I had for several years now w no problems.

Any ideas?
I pulled the #9 fuse for now but even though i can manually lock the doors, the trunk stays open. Am i safe to drive around without that fuse?

The randomness of these symptoms is driving me (and everybody else in the neighborhood when alarm goes off at 2am and won't shut off) insane!

EDIT: Found a thread (didn't come up in a search) that describes same issues. Sounds like im getting a new alarm siren asap.