Other than perhaps a sticker what's the visible deterrent?
There is no visible deterrent. The theory is that if the scum knew there was a tracker on it they would park it somewhere and try to isolate it for a few days, if unable to find and destroy the tracker.
I have it fitted as part of the offer, thought it might be a good idea althoo it makes no difference to insurance premium at all, so far they keep sending me sms every time I move it in garage!
I doubt I will extend beyond the first free year sub, as if it were stolen, I dont want it back!