I just bought a 2000 dodge avenger es and when I lock the doors it says security and my driver door don't unlock with the key so when I unlock the passager door and hit the unlock button and as soon as I open the driver door the alarm goes off and I don't know how to turn it off all I have is the key I didn't get a key thing it will even let me start it

 

Factory or aftermarket alarm?

 

Factory