this is my first alarm install and i just want to make sure i have things correct before i start to insall on the car. i feel confident on what i have so far but theres a few things i cant seem to figure out online. Can someone confirm that these highlighted are the correct connections i need for install? ignore my random pen notes. Also would i connect the negative wire of the siren to chassis ground? thanks for any help .

 

Yes horn goes to chassis ground. I didn't do remote start on mine so I don't know about the door trig. pos.

 

Thank you.