Okay...listen (or read, rather) very carefully since this isn't the first time this issue has come up.
The "Inferno Orange Interior Accent Trim Package" (W1H) is a BLACK Interior with orange accents on:
-Front seating surfaces
-Rear seating surfaces
-Instrument panel and door trim inserts
-and Orange stitching on the steering wheel, shifter, armrests, and center console
This is all-in-one, and you cannot get one of the above without getting everything else with it.(ie. stitching cannot be had separately)
This is the interior that we've all seen in the silver car, and it is the ONLY orange-related interior offered on the car:
The AAY issue is pretty simple.
It's a technicality. This is the code for the orange interior in the SS cars. Every color interior has it's own code. Orange is both a package AND an interior setup, so for all intents and purposes, it has two RPO codes.
You CANNOT get W1H in an SS without the AAY getting selected automatically.
I hope that helped?