I have a 07 chrysler aspen 5.7

Hello is there anyway to disconnect the factory alarm. Today the battery died in the remote so I used the key to unlock the door. The alarm and the horn started to sound even after I started the car and the alarm stood on for a while. My other car when I used the key to unlock the door it would disarm the alarm.
I know I can change the battery in the remote but I want to disconnect the alarm. Is this possible?
Anyone have any ideas?

Thank you

 

the alarm is software in the computers and no u can not turn it off sorry