[Mr70]

Have done the same as most above,but found that two bucket seat headrests really needed the most attention overall.
The paint would never dry,even after 4 weeks of drying time allowed.Turned out there was a heavy amount of oil/grease in them,(hair cream I imagine),so I had to really clean & prep them well,moreso then originally thought.

After a thorough cleaning on the flexible & rigid plastic pieces like kickpanels and console,you'll need to hit them with a plastic adhesion promoter first to "open" up the material to allow the dye to take to it.Otherwise the dye will sit on top and never adhere to it,no matter how long you give it to dry.
I recommend Dynatrons Plastic Adhesion Promoter #675.