i recently installed a new head unit into a 98 ford contour. the radio works fine, and it was installed off of a premeium wiring harness(the car has a premium sound system) anyways when i drive at nite the dashboard illumniation blanks out, the fuse keeps gettin blown. now in the fuse box, the radio's fuse is right next to the dashboard illumination's fuse. also when the fuse blows, the radio keeps playing fine. i dont understand what the problem is? someone please explain or help.