Thanks everyone!
safeinthecar-did you have 3 big seats across when you had your Armada?
As for the tether anchor for the middle seat, once my youngest was almost ready to move FF, I started researching how to tether the middle seat. Decided i wanted another anchor it it could safely be done. Talked to Britax, my CPS crew here, engineers at Nissan, my CPS crew consulted with people they knew around the country, you name them, I called them. Anyway, we got another tether anchor and had my dealer install it. It was quite the ordeal having engineers figure out the best position and attaching it to the car frame. After it was done, I had a tether anchor for my middle seat! It was worth the trouble to me to have it done. Tethering to the third row wasn't practical for us bc it was really in the way.
I have wondered if I am the only person who has done this bc most people think I was nuts for doing all that to have an additional anchor installed. I keep my cars for a while so when I bought this in 2005 I knew it would be my car til at least 2015. Worth it to me to have it installed and be done with it.
Like I said, I am a paranoid mama!