Our new ford crewcabs had the middle headrest and I pulled it out right away
it was tricky since it was pushed down all the way and tight to find the release!
getting in and out is one way, but
if she doesn't want to do an in-bed camera,
she might try one of
these
I used one until I figured out that the middle glass has a 'safety glass' etching or something right in the middle and if I line it up JUST right with the top of the trail air shock on my pinbox, I'm lined up...
to help me at night I also put a small piece of reflective orange tape on the pinbox where I need to line up...