Thanks to 66Dvert - Good Carpet Advice

Yes, I did the same with the carpet in my '63 Signet 'vert.

When it arrived from Ca I had to take it out to replace the rear floors. I intended to replace it, but I can't get molded carpet for that car here in Australia. Shipping was a joke from US to here so I did the clean up and redye thingo. It was red and i used a deep red dye.

It took some time for the dye to really dry properly but it looks great and I saved a bundle.