I have a 65 Nassau blue exterior (900FF) with a code 40 blue interior. The interior dye I used for all the interior parts worked great, including the console. But when I painted the radio grill, I noticed the blue (40) was lighter than the dash? The dash is in good shape and seems to be the original color. I checked the under side of the radio grill and window trim. Is the color difference normal? In order to paint the radio grill, will I have to custom match that paint?