i have a 2000 Lexus RX with no tether anchors installed. I read online Toyota and Lexus dealerships couldn’t install these, but when I called numerous dealerships they said it was not a certified Lexus part so they would not install. I have read somewhere if I can find a 2001 Lexus RX seat I could switch out the rear seats. Any help is appreciated! It is time to turn my little one around and the only thing stopping me is not having top tether anchors. Thanks in advance