I just put in this none for the 3rd row / cargo area. I added the USB cable and installed the screen under the middle vent. Haven't had time to try it out much yet.
https://www.amazon.com/dp/B0DMSTY9YQ?ref=ppx_yo2ov_dt_b_fed_asin_title
In hind site, I think I might have gone for the single...
I was just shopping for my dog config today. Thx for the great ideas! Have you figured how to get the 3rd row AC to work with the seats down? (I understand the seat need to be occupied and / or have a seat belt buckled for the 3rd row AC to activate.)