The trunk solenoid should just have a trigger line and ground. Most power trunk solenoids just have 2 wires: ground and trigger. The trigger should tap right in to the trunk trigger line of the alarm box. What happens is when you hit the power trunk button on the remote control, the alarm box will trigger the solenoid. Don't hook it up directly to the battery, unless you plan on running the switch button. But since you have a Honda (I think) you don't really need the switch button. Just use the pull lever from the inside, the remote button from the outside.

 

That sounds about right. If your car doesn't have a factory solenoid, they have to run the wiring physically through the car from wherever the box is, through the back seat, into the trunk. It's about 1.5 hours worth of labor.

 

if your alarm's accesory function is (-) then you cant hook the solenoid directly to the alarm brain right? You'd have to use a relay with a fused 12 volt?

 

yup...

most alarms may require a relay either way though, as its only a transistor output, which is not capable of much amperage, and the solenoid usually draws more than the output is capable of handling.

 

One of my buddies also wants a power release. His alarm transmitter only comes with 2 buttons. So in other words he doesn't have a aux button. Now do i just go and program another transmitter that has a option button? TIA!