I've got one car where the front passenger seat will set off an alarm but if I hit a button on a control stalk it'll ignore it. However, this car loses its mind

I've got one car where the front passenger seat will set off an alarm but if I hit a button on a control stalk it'll ignore it. However, this car loses its mind if I start the vehicle with the driver door open or my seat belt off (pretty common when you want to get the heat or a/c going for a bit before you drive off) I've got another vehicle where it goes full chicken little if I don't button the seat belt first. Both of them make me nostalgic for a Mitsubishi I had where the "chime" was a specific speaker that was easily disconnected and not a full blown part of the stereo/canbus/ecu and blasting out of every speaker in the car.