Quote Originally Posted by David88vert
The negative output from the alarm is only about 150 milliamps - not enough to pop the actuator. You have to run that negative output to a relay, and use that to throw either 12v+ to the actuator (and ground the other side), or to throw a negative from the relay (with the other side of the actuator hooked a 12v+ feed - fused of course).
Exactly right. As far as the alarm going off, it sounds like you have either failed to diode isolate, or have incorrectly wired up one of your instand triggers.