Quote Originally Posted by GERMANIKS
I am confused you leave the phone in the car to act as a tracker?
Yes. I had a second iPhone 4s that I have buried in the deepest darkest depths of my car

Works pretty well with 'Find my iPhone app'.

It's wired into my Parrot kit so it charges when I'm driving (which is quite a lot!) and then stays active for maybe a day when the ca is off.