mcc400

Hi my fiance and I are new to the forum. We just got a c400 and are installing an aftermarket illuminated star. We've already referred to other threads where the wiring is installed into the fuse box, but this doesn't allow for the star to be illuminated along with DRL's. Does anyone know which wire in the headlight harness controls the DRL's? Has anyone had success with their c400? Any help is appreciated thank you!!