Acallys

I guess I got my facts a little wrong. I wasn't having problems with my alarm, it was the boot siren. That was really easy to disconnect once I figured out what I was looking for. I disconnected that and haven't heard anything from my car yet so I'm guessing I managed to shut it up.

My car alarm went off for a weekend a couple of months back and ever since then whenever I unlock the car the alarm beeps 10 times. I bought the car second hand and ever since I bought it the main key hasn't worked to unlock/lock the car via remote. I replaced the battery in it and that didn't fix it. When I press buttons on it the little red LED comes on but it doesn't connect with the car. Because the secondary key is less bulky I just use it and leave the main key as a spare at my parents' house. Tonight the alarm decided to start going and I couldn't manage to turn it off before giving up and disconnecting the battery. Unlocking and locking the driver door didn't do it. Turning the car on didn't do it. Opening the boot didn't do it. I'm keen to just disconnect the battery completely and be done with it as cheaply as possible as I'm a student. What's the easiest way to go about doing that?