New Multifunction GEM Module 1997 Mazda B3000/4000 Ford Ranger OEM OEM FORD ELECTRONIC MODULE - Multifunction GEM Unit MAZDA B-3000 97 Multifunction; (behind center dash), w/o keyless entry; ID F77B-14B205-DA F77Z-14B205-DA MAZDA B-4000 97 Multifunction; (behind center dash), w/o keyless entry; ID F77B-14B205-DA Geniune OEM Part.