Pontiac Repair: Pont 06 theft alarm, hood latch, dome lamps

Question
My 2006 Grand Prix horn alarm goes off for no reason..1 week ago had dealer where I bought it in '07, do check on it (plus other maintenance) they said it was due to trunk latch (trunk alarm was also sounding off), dealer replaced trunk latch..this morn at 3:00am the horn alarm went off, again just now at 5:30am..so I've turn theft alarm off on dic center...what do I do now??
I'm several hundred dollars in the hole on it for the new trunk latch!!!!
thanks
don

Answer
HI don:
intermittant issues like this are hard to fid especially if there are no trouble codes set any of the cron modules to lead towards a possable cause. it's going to be one of the door switches or even a hood latch. It's a process of elimination. if the issue happens quite often it may not be that hard to find but the mode of an intemittant issue the harde it is to find. it mat be a door jam switch more then anything else. If it happen more oten when damp or wet out I would lean towards a door jam sitch even more. when you drive this down the road do the dome lamps come on and off or flicker while driving?