SEM has several products for re-coloring interior parts but I've only used their Color Coat. You can download the tech data sheet with the usage instructions from their website at -->
http://www.semproducts.com/color-coat-aerosols/
I believe the door panels, kick panels, and other similar "semi rigid" plastic interior panels are made from polypropylene (PP) plastic. SEM recommends their #39863 plastic adhesion promoter or #77723 for those types of plastic.
The instrument panel bezel and other "rigid" plastic parts are usually ABS. SEM recommends their #38363 sand free for ABS & PVC plastics.
The dash pad, arm rests, and other "soft" parts are usually covered with viny. They recommend using SEM #38343 vinyl prep.
They don't give any instructions for using Color Coat on metal parts. But I have used it with good results by epoxy priming the parts and spraying them with the Color Coat just like regular paint ... it's a flexible coating (not a dye).