One the jobs I've been meaning to sort out, is the alarm on my tourer. Early this year I went to unlock the car via the remote, as soon as it unlocked the alarm went off. I tried relocking and unlocking via the remote and the door locks but nothing would stop it, as soon I unlocked the car the alarm went off. We had a newborn baby at the time so I didn't have time to mess around, so I removed the siren by removing the sub in the boot. Wrapped it in bubble wrap to silence it and waited for the backup battery to run out. I checked the cars battery voltage and at the time it was a bit low, 12.4 V. So I think it was this that messed up the alarm, I charged the battery up and reconnected the siren. The problem is it sounds as soon as I do this. As soon as I plug in the siren it sounds. So my question is: Is there a procedure to be carried out after reconnecting the siren to initiate the system? Or do Honda need to connect it up to their software. The battery is holding its voltage and charge, I think it went low from lots of short journeys.