I'm a used car dealer and I finance my car to my customer in America and they make payment everymonth. Some of these customers make their payment and some don't. So what I need is an equipment that I can install on the cars, so when my customers don't make their payments, I will have a full controll to cut off the car from running. (most likely, the equipment will be attached to the stater wire) if you have any other ideal that can help me to control my bad customers to make their car payments I will appreciate it. Product like this are called payment sentry (you can check this website (paymentsentry. COM) , starter interupter, etc.