My 59 Caddie has the original leather and cloth upholstery. After being in storage for 20 some years, the interior was filthy dirty. I shampooed the cloth and some of it looks nice and brite but other areas look dull. It's black with silver threads running thru it. Is there any products that I can spray on it to brighten it up? Also, can you recommend any spray dyes for the leather and vinyl areas? Any inf would be appreciated.