HC with the rear mirror camera is standard (I think). You don't need to have the rear media/technology package. I drove a 25 HC last week that had the rear camera mirror (which btw is overrated and it made me sick/nauseous) and did not have the rear entertainment package. This model DID have the High Country deluxe package (air ride suspension, etc).
I guess that was a bad example. My point was that if you add the rear camera mirror during the build process it adds the rear seat entertainment. That's not the only build issue, either, just a quick one I used, which seems to have been a bad example.
Ultimately, I'd like to see the option to show me inventory that does not include rear seat media, that would be very helpful that way I could look at the results and find vehicles that don't have that option. Right now I have to click on each result (that I'm interested in) and look to see if rear media is included, which takes a lot of time.