I have a 2001 dodge intrepid. I have bought HID headlight conversion kits and LED kits. They advertise that they just plug in and work. But they dont. I have bought 3 different kits and none of them will work. Can anyone tell me why? If i connect them directly to a 12 volt power supply they light up. But they wont light up when connected to the car. Any help here would be very much appreciated.