2006 Kia Rio

Electrical problem
2006 Kia Rio 4 cyl Front Wheel Drive Manual 26000 miles

I bought a 2006 Kia Rio new 2 years ago, I chose not to take the alarm due to the price they wanted. Last night I found I had a dead battery, I buy a new battery and hook it up only to have a car alarm trigger. I have no remote no panic button nothing but had to disconnect the battery to get the alarm to stop. I pulled the horn fuse but now cannot start the car because the anti theft which I didnt think I had keeps going off when I open my doors. Any ideas on how to fix this problem?
July 6, 2008.

Check out the related content below while we wait for the question to be answered by a professional mechanic.