I had a light grey headliner, carpet and the entire vinyl was grey with pretty bad fading.
I replaced the headliner with a black vinyl headliner, replaced the carpet with brand new black carpet and painted every single piece of vinyl black with about 5 coats of vinyl paint.
It looks AWESOME. I just need to replace my fabric seats with black leather and I am done the entire interior.
I also sound proofed the entire truck at the same time. Floor, sides, back gate, doors, roof, dash and under the hood. It sounds almost silent minus the wheel noise.
It took 2 weekends to do the major parts friday, saturday, sunday and then a few extra days to do minor stuff. Not hard to do, but it takes patience.
My next step is to coat the wheel wells with truck bedliner to reduce road noise and then undercoat the entire body and I will be done.