my boo boo carpet not capet

I am getting my hands on some good used carpet for my S13. And I want to dye it to very dark gray or black before I put it in. I searced on google and here and it seems like most people use the fabric paint, I used this for my door panels and glove box, but I dont want to use it on my carpet.

So my question is what dye did you use if you dyed your carpet.And where did you get it from?

I found this but the links are dead, but its the brush in type and not spray dye or paint. http://www.leathermagicpro.com...t.htm

let me know if you know where I can some.

that really isnt a die and i would personaly go with a spray in die and rub in with a brush too but air sprayed not by hand so that way it goes deep