I was wondering if I should go with the abs unit and install it myself, or have a shop redo my stock headliner? I want to make sure it retains the factory look since it is an unmolested show car with low miles. If your advice is one or the other, could you recommend a place? If I need to have it professionally redone, I live in Northern Illinios, so shop would have to be in the "area". Thanks in advance.