I have the DVD headrests in my MKX and they are wonderful. I have one kid but I also pick up my nieces a lot of the time and it gives them something to watch (mainly ELMO) while I am listening to my cds or radio. It was an add on for me but the dealer did it and I believe it cost 2100 bucks from the dealer and installed. For me it was well worth it but I give the one guy a lot of credit for getting it off of ebay and very cheap! Save a lot of money if you have the time and engery to do it! Way to go!