Minivan Dvd Is It Hard To Install A Roof-mounted DVD Player In My Minivan? I Don't Want To Pay Someone Else To Do It. ?

Is it hard to install a roof-mounted DVD player in my minivan? I don't want to pay someone else to do it. ? - minivan dvd

If it sells DVD players that can easily be paid on the roof of the van, without someone to do it be installed?