The 06+ FX steering wheels comes with illuminated buttons. The illuminated buttons would have the function label on the button rather then on the top/bottom of the button on the aluminun piece. If the 350Z steering wheel is illuminated, you have to get an 06+ steering wheel clock spring to replace your 03 one. The 03 - 05 FX clock spring doesn't have the pin to power up the buttons. I have modded my 03 with an 07 steering wheel with illuminated buttons.
Here is the 07 steering wheel and 06+ cluster in my 03.
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---------- Post added at 12:27 PM ---------- Previous post was at 12:22 PM ----------
Hey Man,
Hope all is well just wanted to thank you for the write up. Got my wheel swap done this past Sat. Would have gotten it done 2 weeks ago but had a bad clock spring. When ever you get a sec. Can you send me the link for the cluster. Pardon the brightness took pic with $#!++% camera