Adding Lumbar Support to Passenger Seat?

[Oldtimer]

I want to add a passenger lumbar support to out 2021 SXP. I tried ordering a driver's side unit from Kia Parts and was told it it not available. I have now gotten a pneumatic one from Moss Motors that I plan to try to install into the seat back. 650-100 Inflatable Lumbar Support | Moss Motors
Has anyone done this or have any ideas that might be helpful?

 

[PittPa]

Let me know how that goes. A huge omission in my opinion by Kia on the top of the line car. And the one the have for the driver isn't that great either.

 

[HillCountry]

Following. I wish the passenger seat had more/any lumbar support.

 

[beato1]

Been using small pillows in all our cars until the Telly EX-P. But my wife still uses her small pillow for the passenger side and she's ok with that (along with the ventilated seat).