My XLT S'crew has the MyFord 4.2 screen system with the Sirius button but no tuner and no antenna. From what I've read the radio head units themselves have the sat tuner built in. So I assume the only way to add sat radio is to replace my radio unit with one with Sirius.

So, does anyone know the part number for the head unit with Sirius? Also, will an aftermarket antenna hook up to it? I have a Lynx receiver but I'd rather integrate sat radio into the truck's factory system rather than having the Lynx hanging on my dash.

Call United Radio. 1-800-448-0944 They make the Ford radios. Ford dealer was clueless, said it couldn't be done. They are really nice and great to deal with. Just have your VIN ready. It was about $325 for the kit.