My uncle called me tonight and asked for some help. He put on a BestTop Strapless bikini top tonight and 2 miles from the house the entire plastic header and top took off. I have a 2007 4dr and am not sure how it attached to a 2010 2dr. He mentioned only one knob in the middle which he did tighten up. Anyone have any of these or have and idea as to what happened? Does the header "snap" in anywhere?