fusion to f 250

a few things for you to check

if you look in the trunk, up at the speakers in the rear deck, how many speakers are there?  two that are the same size and a amaller in the middle? or just the two outer?  or none? the outer speakers are the subwoofers, the middle for the rear surround on the THX system.  if your vehicle has the subwoofers, then i believe that the headunit has crossovers for the four door speakers and an output for the subwoofer.

if your vehicle has no subwoofers in the trunk, then it should work in your F250 with the exception of the steering wheel controls (they may not perform the exact functions as labeled on the buttons) and the illumination/ backlighting of the controls may not be enabled.

as for the antennas, the NAV antenna connector may be different than the one on the Pioneer, and you may require an adapter for the AM/FM...different style connector on the '08 radio. is the Sirius a factory Ford piece?

m