Need Help Finding Power Window Upgrade!

[Yates]

I have posted this on other posts,but I need Help. I have been searching high and low for the power window relay upgrade for my Buick and I have not been able to locate them anywhere. Kirban told me they no longer carry it I also contacted G-Body Parts, Poston, and Casper Electronics to no avail. Someone reading this has to know someplace these can be purchased. Please Help.Thanks in advance