I wired mine to come on with the truck.
I bought a cigarette lighter like this
http://www.autozone.com/autozone/acc...fier=3284_0_0_
Run the power wire to the power wire of your radio. Other one to the black wire of your ground. Then plug in the sat. radio adapter into this hide behind dash.
I then bought this
http://www.pro-fit-intl.com/pro_fit/ford So it mounts right by the HVAC control
http://www.pro-fit-intl.com/Adobe/FO-71-95.pdf
----------
Found one on ebay that is the same as the link I posted.
http://cgi.ebay.com/FO-71-95-VSM-Cel...item2a0c703a6a