Hood release instead of trunk release?

Um, so now you would have an electric hood release?  Why not get a standard pin switch (Normally Closed)?

For wiring just tie one side of the switch to the trigger and other to ground if it's negatively triggered or + is positively triggered

Another idea, don't discard the trunk triggering, have the truck or the hood trigger the alarm,

this way you don't have to come back telling us how someone climbed in through your trunk

and stole all your crap :-)

Here is what you need to do to wire up an actuater to the hood latch.  The alarm channel supplies a (-) 200-300ma output.  Being negative will not help you and being a fraction of an amp will not help you.  Therefore a relay is going to be needed.  First off ground the actuator.  A good place to do this is under the dash or kick panel.  This is a good place in case your battery goes dead(You can pop the hood from an external source).  Now you need a bosch style 30Amp relay.  This will convert the negative output from the alarm to 12 volts with enough amperage to pop the actuator.  You will need to wire up 86 and 87 up to 12 volt.  85 needs to be connected to the alarm channel output and 30 will give you a 12 volt output for the actuator.  Make sure to fuse the 12 volt leads going to the relay(This also should be put under the dash or kick panel for previous reasons).  Also I would look for a way to manually pop the hood in case the actuator goes bad.  You dont want to pay a body shop to pry open the hood.

Good Luck