Anti-Theft Suggestions.

I install gps trackers on car lot cars all the time. Some are simple and only require a power and ground where as some i do actually go into the ignition wire. So that when people dont pay the car lot can get online log in and either see where the car is or just flat out shut it down. Their called imitek trackers or something like that. They cost under $200 and you have the ability to shut it down without the middle man