I am new to the forum and just purchased a 2018 Expedition Platinum. In my negotiation I included having the dealer install the factory Voxx Hirschmann RSE. I picked up my vehicle and noticed that the headrests were incorrect and they actually installed an Advent system. The dealer stated that the aftermarket DVD headrests haven't been released yet so they couldn't install them. Has anyone sourced the 2018 RSE solution through parts or is the dealer just trying to make some margin on me? Thanks