If you&#x27;ve got an old cell phone you no longer use (but haven&#x27;t thrown away &#x2F; recycled), just tape it somewhere in the car and cover it with something so it&#x27;s not obvious. Then connect it to your home wifi (assuming the car is parked closed to the house), and turn on a live streaming app like ustream &#x2F; whatever. It&#x27;ll burn through the phone battery pretty quick though, so you&#x27;ll probably need to plug it in somehow.<p>Wouldn&#x27;t do much for motion detection or night vision, but might be an easy way to get started.