Here is an s10 I used to have, i fully restored it body/paint/interior.

Best before picture that I have...







I sprayed the interior with Dupont's Vinyl Resin paint. I prepped it with Duponts plastic prep scuff paste with water and a grey scuff pad, then i sprayed Duponts plastic adhession promoter then sealer then the vinyl resin paint. The prep work is the most important!

Before the interior was the bluish grey...


After paint... all black. I painted the gauge cluster and air vents silver too.