I installed the Customdynamics DRL light tubes today (part TF21WS). These are the same LED tubes that Smangerer installed, but in white instead of amber color. The 5.1 inch smoke colored tubes fit perfectly in the lower left and right black fascia as shown in the photos. I tapped into the hot wire that Brother Mike noted in his earlier post in this thread. I think it is the interior LED dome light circuit because the lights stay on 30 seconds after the last door is shut after turning off the car.