everything works except when I move the car??? I am using an FM modulator, and everything works while the car is still. As soon as I start moving it cuts off. The screen of the wired remote display just goes blank, like I lost power. When I stop moving the car again I can sometimes power the chager back up but sometimes i cant.The modulator has three wires: red for switch power,yellow for constant power, and black for ground. I just spliced them into the stock head unit's switch,ground, and constant wires. Thanks.