Hi....I have a 13 Touring that only has the black shrouds/knockouts. I want to install the Hella 90 mm lights and need to know 2 things. First, do you know if there's wiring for fog lights under the bumper or will I need to provide that? Also, can I drill/dremel the holes in the black knock outs or should I order OEM knock outs with holes and clips,etc? Thanks.