So It took me a while to figure out where to install my Xpress XM Radio. Finally I figured it out. I Installed the supplied mount by screwing it into the blank that goes where the 4WD switch would be. Attach the mount as far right as possible and you will have a clear view of the display and controls @ your fingertips. I used two small bolts and secured with nuts on the back.
The power cord fits nicely in the pocket down by your knee and I notched the plate so my audio out and antennae could go into the dash (I am using a metra aux in adaptor.) I also have my ipod end of the metra adaptor in my glovebox.
PS I mounted the anntennae right on top of the stereo (Inside the dash) and have had no reception problems.