All standard interiors got black belts with plastic buckles, and so did Deluxe interiors. Deluxe belts were a stand-alone option all unto themselves, and weren't included in any other interior package.
I knew that DeLuxe belts were a stand alone. So if I am interpreting you correctly , all STD interiors, regardless of color, received black belts. So that a blue STD interior, for example, would receive black STD belts and not blue STD belts (STD = plastic covered buckles)...the only way to receive color keyed belts (i.e. blue belts in a blue interiro, red belts in a red interior) would be to order DLX belts...do I have it right?
I have seen a number of STD belts that are color keyed, would I be correct in assuming that these are not factory and are modified and installed by an owner?