I might be able to make some if theres a good amount of interest. I did this a couple years ago for the Durango, only sold a handful but... I'll check out my Blazer tomorrow and see if it's something I want to dive into. If I do, it would utilize an AD244. Not 100% sure what the connectors and such loom like because I always have them converted to a "1-wire" setup. But yeah, I will check it out amd see if it is something I wanna do.