Review on TKSTAR TK905: Advanced 3G GPS Tracker for Vehicles | Real Time Tracking, Waterproof & Anti-Theft | Hidden Car GPS Locator with Strong Magnet – Ideal for Car, Motorcycle, Truck by Gary Lucas

This is exactly what I was looking for. I can understand why some people might be disappointed with this product - I wouldn't call it "plug and play" or "consumer friendly" but ironically that's why I gave it 5 stars. If you are a techie and you know your way around cellular networks, you can customize this device to suit your specific needs. With an already activated SIM card, I was fully operational in about 10 minutes. My only concern before buying it was whether it could charge and work at the same time. I am happy to say yes it is possible. I will definitely buy more of these.