[xenon]

For the benefit of our Canadian friend, all UK cars have the alarm as standard BUT it's now against construction and use regulations to have audible sounds for alarm arming or disarming. Mainly because if you live in a street with lots of cars outside it gets on everyone's tits.

So you can't do this on UK cars unless you get somebody to code it for you using autologic. The capability is there - just disabled for the UK market.