Hey guys have a question i have a 03 king ranch supercrew and it has the 6 disk changer in the radio. My brother inlaw has a 06 lariat supercrew and has a stock sub under the drivers rear seat. how hard would it be to do this to my truck. what all would i need and also is it going to have to be ordered from the ford dealership so it will fit properly under the seat. The rear seats are captians chairs with the center console i dont know if that would make a diffrence. It looks like we have the same stock radio but dont know if there are any diffrences.

Thanks for everyones help