Just replaced the HU w/ the Kenwood EZ 700SR w/ built in Sirius tuner. Installation was VERY easy, and with the exception of wiring the harnesses together, total time to install was about an hour! Here is a link if you want to see the install...

https://www.f150online.com/galleries...w.cfm?num=9257

 

where did you put the actual tuner box itself?