http://www.summitracing.com/parts/rfw-gw16/overview/
Put one of these on your car. They sell them with plastic covers too. You can run a wire from the battery or I would take the power from the starter relay. Much cleaner and safer and you can multi tap. You can usually hide it under the battery.

8453005-RFW-GW16_ml.jpg (83 downloads)