Did you use a wire harness to plug into your stock harness? If so and there is no wire there then your vehicle does not have an ACC which is some vehicles is common. I am not sure about yours. If that is the case you need to wire it to something like the cig lighter (something I would only do if it can only be used wile key is turned to ACC or car is on). I have heard of people wiring it to their heater control and also some to the fuse box.