How to turn off stock security alarm in car?

I have an 04 Subaru STi with a remote start key fob. The key fob has nothing to do with the alarm, it neither deactivates nor activates it. The original fob is usually in my glovebox just in case my alarm goes off but having had it stored for months in my parents garage I forgot to put it in the car. I drove the car to the city I live in to sell it, the buyer wants a compression test and I get it done, but the alarm is triggered when the mechanic locks the door without the key fob. Now my starter motor is disabled, my horns go off, and when I pulled that fuse the signal lights blink (which I took out for the time being).

We were able to “trick” the car to start at the shop, but now I have a dead car at my house. Is there any way to disable the stock alarm system in this car since I can’t get my original fob for at least a day or two?

One Response to “How to turn off stock security alarm in car?”

  • Gypsy:

    In some cars, there is a way to short it out…. need experience to do it right… and when shorted it not easy to put back together. Look for instructions online. You will be working near the accessory battery (typically under the back seat)

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