What tips/suggestions can you tell me of the proper technique/prep. to applying my aerosol vinyl dye. Besides the normal removal of oil/silicone. Should I lightly scuff with an ultra-fine steel wool? I also bought clear vinyl primer. Should I use the vinyl primer over the vinyl parts only? I am hoping to paint the interior trim (metal) also., hardtop also. Dash, all vinyl trim, and all metal interior/hardtop trim. Thanks! Dick Gutman