File & Fire has another great product I got delivered today. The rear cupholder of usefulness (that's what I call it). It's a printed part with rubber fins that slides inside the useless "cupholder" between the rear Captain's seats. Here is the link:
fuelandfire.com
And here is a pic after the install,which is literally drop in. It seems snug enough it shouldn't come out unless you want to take it out to clean it.
Middle Row Captain Chair Cupholder Insert for the Lexus GX550
Middle Row Captain Chair Cupholder Insert for the Lexus GX550 – Made in the USA! 🇺🇸 Single insert. Fits GX550 models equipped with second-row captain's…
And here is a pic after the install,which is literally drop in. It seems snug enough it shouldn't come out unless you want to take it out to clean it.