Alarm keeps goin off and is draining battery when van is off any suggestions any

Hello, if you are speaking of a Kia factory equipped alarm that is integrated in the electrical system of the vehicle, it cannot be bypassed or defeated. Typically an unintended activation of the alarm is caused by the processor of the vehicle seeing a door opened -- even when it wasn't opened. This can be due to a faulty door sensor somewhere in the system. These sensors can be monitored with a diagnostic tool to see if one is saying "open" when the door is actually closed. A closed door that is being reported as "open" will act as an uninvited / unintended entry and result in the alarm going off.