Working on replacing your factory door speakers with aftermarket ones on Ford F-Series, Edge, Fusion, Mustang, or Transit? The American International FSB1502 is a pair of speaker adapters for select Ford vehicles with a year range of 2015 to 2018. These adapters will work with 6 in., 6.5 in., and 6.75 in, or 6 x 9 in. speakers.