I have tried two different products on the ScienceofSpeed NSX:
1. ScienceofSpeed Steering Hub
This hub was used with the Sparco Ring Suede and Sparco Extreme 2 steering wheel. I mounted the cruise control buttons on the steering console (below the steering wheel). I used the horn button on the steering wheel, and had to wire a contact to the console to create the circuit with the steering hub.
2. TAITEC Steering Hub
This was my favored approach. I used the TAITEC Steering Hub with the Sparco Ring Suede steering wheel with the Sparco Control buttons. This hub utilizes the factory cable reel, so I was able to retain the horn function on the steering wheel, while placing the cruise functions on the accessory buttons that the Sparco Control kit offers. While this hub is heavier than the ScienceofSpeed hub, the bulk of the weight is positioned in the center, so the rotational inertia is not greatly affected.
http://www.NSXClassifieds.com - free NSX classifieds site!