Hello again thanks for your help every one. Xane ze thanks you as well i'll do that lol . Its just that i dont want to damage anything on my car. I'll disconnect the horn sucket and take the car to the dealer tomorow. I'll order the key box so that i can hook up my horn again and hopfully that'll take care of the problem. But i dont understand why would the factory alarm go off while changing the battery wiered dude. Thats why i was worried i just wana fix the problem and I hope nothing electrical wrong with the car, so dame weired. That's all for now i guess thanks again mustafa.