General :: How To Use Android Phone As GPS Tracker

I have been trying to find a way to use an android phone for real time GPS Tracking of my car.

1. Phone would be attached to a charger (hidden)

2. Phone would be programmed to switch on an app with GPS

3. Now if the car is switched off the phone should still remain ON till the battery drains since the charging would happen only when car is switched ON

4. I have seen a lot of custom roms like Cynogen and MIUI and there is a case that if my phone is off and I put the phone on charging then the phone switches ON automatically.

5. But the problem is that suppose the battery is 0% and the car is switched ON the phone would start since the charging would start and suppose the charging gets the phone to like 10% battery then if the car is switched OFF then the phone would switch OFF ( I want that the phone should remain ON)

Since I would not have access to the phone as it is hidden it would be difficult to manually switch the phone ON.

Is there any way to ensure that the phone remains in the ON state even after the charging has been withdrawn.