Hi Andrea,
"The tracker only reduces my insurance by around £10 per year"
that sentance should tell you all you need to know, if insurance company's dont think they are worth much!
Also most thefts now seem to be done via obtaining the keys.....which would make the tracker useless if i am not mistaken!
At the end of the day, with the Tracker systems you are relying on a police patrol stumbling upon your signal.......and how many of them do you see around these days, and that is IF there car is fitted with the reciever to pick it up????????
Use the £109 to get yaself a Thatcham approved Disklok (£80), which is also a visual deterrent.
Just my 2 bobs worth
Sean.