Been toying with the idea of getting a car alarm, a Toad AI606 has been recommended to me. They cost about £140.
I've never really liked the idea as an alarm is only as good as who ever responds to it and these days including myself if I hear an alarm I think friggin alarm instead of let me see if I need to call the police etc.
But it would knock insurance down a bit I guess ...?
How easy or hard are these kind of alarm to wire up ?