Did you come up with anything here? I also have the red interior and my spokes are just starting to fade in a few spots. I had a 95 Park Ave with the same steering wheel but in grey, and I re-painted it, and it looked great, but I've not found the right color red yet for the Roadmonster.
Also my Park Ave had the same stereo and wheel but had steering wheel radio controls. I'm lazy I guess, I miss that! Wonder if I could do that mod. I've seen Regals with the same steering wheel and they had radio controls on them as well.
-Mike