Originally Posted by D&NIS

Youre right, battery lived long enough for 9 years. I'll check to see if there's any water in the trunk.
Past few time's i sometimes trigger the alarm by unlocking the doors (not the actual alarm but a beep.. beep. beep. sound).
There's a battery in the Alarm-module does it have to be replaced sometime?
Anyway i'll try so things out, hoping to find the problem.
If there's an easy way to just kill the whole alarm it would work as well for me.