This is my first winter with my A4 and I've been having a few issues with the alarm recently which I'm assuming is down to the cold. The car is locked on the driveway and will the alarm will just randomly go off, sometimes once, sometimes 3/4 times in an hour or two. It started towards the end of last year when the weather changed and has been ok the last couple of weeks until this evening. The only thing I can link it to is the colder weather maybe? Any thoughts?