Factory alarm, what do i really need for what I already have

Hello
I've read threads of factory alarms but still not sure what parts are needed for my scenario. I have a 2020 Trd Sport with keyless entry, what oem module or modules do I need to add the alarm to my current keyless entry system? or is it that my current keyless entry is already an alarm where we use the keyfob to lock our doors and the factory horn with start honking away if we opened a door?

or do I need a separate module to incorporate an armed door horn alert?
then another module with speaker for glass breakage support?

 

The Glass break sensor is not standard on any model and that module needs to be added if you want that functionality.
I’m not sure what model Tacoma’s got an OEM alarm and what didn’t, I always thought if you got the fob, then you got the alarm, but that doesn’t seem to be the case from some posts on here. Simply test your truck for alarm, then you’ll know what your starting point is.

open drivers window, lock truck with fob, put keys a long way away, wait 30 seconds, (make sure dash light is flashing red), check keys far away from truck, reach in and open door. If alarm goes off, you have alarm.

I know for a fact that

$222 Toyota PT398-35160 Vehicle Intrusion Protection Security System

Toyota PT398-35160 will add GBS to factory alarm.

 

thank you, I do have the basic security as i tested following your outlined steps.