I finally had some time to off work to go back to the project. Al rite I fully understand Why I need relays now, The compustar main harness came with two wires for 12 V source. Instead of those two wires going to my constant 12v (on ignition harness) Can I just solder one to the 12v of the car and the other to go to the three relays?

 

Are you sure theyre 12v output, I would just wire parallel to the alarms 12 v source.