Gps security tracking device

[powers1]

Hi,
In the U.k., Insurance companies will not give you full Comprehensive Cover
unless you have a "Tracker" device installed so that police can track you car
if it is stolen.I did not want to buy a stand alone device!
I have Bmws original Sat-Nav "Professional" system (S609A)in my car to which I am going to add the Bmw T.v. kit,but does any one know if you can get a "tracker" module to add to my "professional" system?????Or is it a simple add on to Bmws alarm system?Thanks