Where can I place my phone in car as a GPS Tracker? ?

I have a spare smartphone I don't need anymore. I figured I'd log it in with my Google Account and go to Android.com/find and use it as a GPS Tracking Device for my car. Problem is, I don't know where to put it. Any ideas? Somewhere a theft wouldn't notice? I tried the boot/trunk but signal is lost. 

There are no answers yet.
Be the first to answer this question.