Doors to Cobo and the NAIAS have opened. Thousands will file in to the auto show after a week of previews and hype. Visitors will find hundreds of new vehicles and concepts, and they’ll notice the new and improved Cobo Center. Renovations allow for new and brighter lighting and modernistic displays. Tom Middlebrun is one of the executives of the National Electrical Contractors Association of Southeast Michigan tells WJR’s Powering Michigan’s Future that show-goers can thank the contractors and the IBEW electricians for the new look of the show