[TimG]

I just completed dying the red interior on my '70 Trans Am and did pretty much the same items. The red had discolored and was very dark on the top of the door panels and on many spots on the seats. The carpet was faded, also.

I disabled the seats and pulled all the hardware off and wiped them down with a light solvent. The original driver seat needed stitching in a few spots and that was taken care of by a friend. I hung the seats from a rope and hit them with a dye I purchased at an auto parts store. I went through some trial and error on the color and found the perfect match. You shouldn't have this problem with black. Light strokes work well and it takes a few to cover the vinyl. If you mask anything off, be careful when removing the tape because you could remove or scar what you just dyed. I left the chrome strip on top of the door panels and had to be cautious when removing the tape. I took my finger nail to separate the tape from the newly dyed door panel after is dried.

I have to admit, everything turned out beautiful. It brought the interior back to the original color and the interior carpet, seats and door panels are still the original pieces.