I have a alarm here i am installing. But this car starter/alarm does not have a trigger wire other then the door trigger.

I want to add a tilt sensor and back up battery.

The wires on the shock sensor are

Red = +12v
Black = Ground
Blue
Green

One has to be a instant trigger for alarm and one has to be a warning wire??

 

Blue=instant trigger
green=warning trigger

and since you dont have a port for your sensor you'll have to probably put together both wires, green and blue and if you adding more sensor you'll have to use a 1 amp diode between each sensor so you actually aislate every sensor.

Here's a website where you can get some good info:
http://causeforalarm.thecarthing.com...l#Sensor_Shock

and this thread:
https://honda-tech.com/forums/audio-security-video-27/%5Bhow-%5D-car-security-1794938/

Good Luck