Retrofitting 2nd row wing-out headrest

[EV9Driver2024]

Hi everyone! I want to retrofit the 2nd-row headrest wing-out for my car. Has anyone done it before who could tell me how much did the parts and installation cost?

 

[InLoveWithEVs]

I know those are easy to remove, but try to look for a YouTube video regarding this. I am sure you will find something useful.