Ok, since the steering wheel on these S30's are so easy to remove, I pulled mine. All the parts are there. Since I knew my horn worked with the 280 wheel, I knew I overlooked something. With the steering wheel off, you can see the lever that has to have contact with the back of the steering wheel (it's at about the 5:00 clock postion). I gently bent it towards me. The right end of that lever has to make contact with the back of the wheel hub. Popped the steering wheel back on. Bingo... I am legal again.