Buy your own sim, preferably T-Mobile if you get decent service in your area. This allows for $9/mo for live tracking.
https://www.amazon.com/dp/B01NC0R9OX/_encoding=UTF8?coliid=I28X072ZWM01UR&colid=YP4C6SUWAJ2E&psc=1
As far as alarms, you can get away with Scytek 2way with remote start. The unit in my truck is going on 10 years, I've had the same model in other vehicles from 6-9yrs currently. I run a backup battery and an in cabin piezo siren.
As for the doors, I don't use keys to enter. I've also removed the rods attached to the door lock cylinder and I have an external momentary switch wired underneath the floor pan in the rear that unlocks the doors incase I lock myself out.
The alarm also has a digital tilt sensor that is very effective. When I forget my alarm is on and Jack the vehicle up I get no more than 1" off the ground and it goes off.
I also have a glass break sensor added to the alarm in case they decide to break out the rear panel glass on the rear doors as that is a common entry technique too.
So, those are your options. LMK if you need help on anything. I work in public housing admin, I don't mean near it, or down the street, I work at the main admin building in one of the worst areas of town. My truck won't get very far and neither will the assailant if I come out of my office looking for them lol
