Musical Steering Wheel Cover

If a steering wheel cover were made with buttons on it it could be made into a keyboard or drum machine. I (along with many others) tend to drum along to the radio on the steering wheel and try to hear different notes when I hit different parts of the wheel. Unfortunately I can't keep track of which note is where for long, confuse myself and have to start again. This would allow me to accompany my music masterfully (read: painfully badly) without having to add the notes myself. The deluxe model could be connected to the stereo for better sound quality and would have kickpads to be placed in the footwell for the bass drum and high hat or piano pedals.