How to mount a Thule cargo rack to the top of our Cadillac escalade?

We have all the parts (screws, brackets, etc....) It was mounted by the dealer last year, and dismounted in the spring by a handy man....Any suggestions?????|||This is pretty simple to do. You can even do it yourself. Get the braces for the thule cargo and hook them up both to the railings. Then you're good if you remember the original position of the screws, nuts and washers. Or you can call Cadillac at 1-800-333-4223 and ask to for a installation instruction sheet.|||go to their website and download the instructions for the model you have. so easy a caveman could do it...better yet, rehire that handyman.