FS: Sparco single-button horn adapter
 

Sparco Single-Button horn adapter for aftermarket steering wheels. Can be used for your horn or used for Nitrous or anything else that requires an electric button. Mounts between the steering wheel and the hub.

Sparco charges $39 for these. This one is brand new, never opened. Asking $20 shipped.

http://gallery.me.com/roberekson/100...G_3116/web.jpg