Just an idea I had while driving home today.

Is there a way I can build a GPS device I can put into my car so that I can track it's location where ever it is (I must stress this is not for spying, rather for security)

The idea:

Take a GPS enabled mobile phone and put it in some sort of box, connect the phone to a car charger and hard wire it to the car's 12 volt system to give it power when the car is on (ACC).

The basic steps/reasons.

Keeping the phone powered on:
The phone would need to be on 24/7 in order for this to work.  In order for it to be on the whole time then it will need power to keep it charged.
The idea would be to connect a car charger to the ACC 12v of the car (the same that powers the radio etc).
As the car would be a weekly runner the phone would need a good battery life.

Hiding the phone:
This part would be easy, just seal it away in the smallest box possible, and mount it under the dash or somewhere hidden.a

The software:
I found a website that offers a free application that can be installed on a phone to track it, www.mologogo.com
This narrows the phone choices down.  Maybe someone can suggest a different software/phone to choose??

Why?:
If my car gets stolen I can just connect to the website and check where it is.  Since the device will always be on then it should be easy to find (unless the car stops in a tunnel or something)

Cost isnt an issue yet, as this is just a concept idea.

What are your guys ideas? Suggestions?

There may be a market for these things (unless there are some out there already) if it can be done cheaply

Let me know!