I bought a 21" samsung at costco for $129.
it runs natively on 12 volt DC power...( it comes with a ac/dc adapter similar to a computer...)
it has a media player which will play movies and TV shows I load onto a thumb drive
has a pretty good autoscan
and a headphone out which I use to my coach stereo system
so in terms of wiring...the same power plug from the old tv
the same audio scheme- plug into headphone jack
same antenna
same dvd/vcr input
to replace:
remove wooden panel on inside of door, the old tv is mounted to that ( as least was on my '06)
I made a new bracket to hold the tv and mounted it to the swinging door- lining it up so that the door can open all the way and close all the way
link to pics:
https://photos.google.com/share/AF1QipMyOyH7o9yQqe4xh65wglAqNsw3dkx3a_0NDr6JKeJ7uCQcINWp30Th5Syx0TDflQ?key=X3Fpbm8xX3pzYzdxVmhnQlBxS3JHX21aaTJTZGRn
mike