I currently have the 2 spoke wheel, and I want to know if it is interchangeable with the four spoke. Also mine has the cruise in it.
It should be. The wheel with the cruise control and horn wiring and switches come off as a unit, including the round section of the switches that rotates with the wheel. If the other wheel has the same switch output it should work. Note that in 79 or so, the horn was on the steering column, so those wheels are different.