Alarm Question

[heifetz17]

Would a car that's not equipped with a factory alarm still have an alarm module? The reason I ask is because I just replaced my brake light switch, and I found an alarm module tucked under my dash (where it's supposed to be).

I have never been able to get my little red LED to start flashing, and nothing happens when I hold down the panic button, but I can't figure out why I have a module if the car didn't come with an alarm, unless maybe the module is fried, and the alarm just doesn't work?

I looked up all the component locations on alldatapro and I'm going to search around and see if I have the sensors. I don't have an alarm horn, but alldata says cars either have a horn on the firewall or a siren behind the fender, but not both. So I'm going to look for the siren.

Thanks for any input!

Edit: it's a '99 S70. It's the base model, but it has every option and package that was available.

[Chilled man]

your horn is on your fire wall dead center in the engine bay right above the einge to the right of the VIN number