My grandfather just got an 03 f150 and wants a cd changer put in. I actually have a factory one from an 01 explorer. am i correct in thinking that it will plug into his radio. Does anyone know where the factory position for a remote cd changer in this truck would be??

 

Behind the rear passenger seat. Open the compartment and if you're looking inside, to the right of the jack. I believe it's plug and play.