I have already checked the most obvious things I believe. The fuses are all good and the horn relay clicks when I press the horn. The cruise control servo spins freely by hand. The cruise control deactivation switch has been replaced along with the clock spring. I checked all the connections in the steering wheel itself and everything looks fine.
However, the horn and cruise control still do not work. The cruise control light will come on when you turn it on, but it will not set the acceleration when you push the button. The airbag light does not come on.
I believe that the horn and cruise control not working are related and the only thing I can think of is a possible corroded ground wire connection somewhere. These things had stopped working before and replacing the clockspring was the solution. However, that does not seem to be the problem now because the signal is definitely getting to the horn relay at least.
My question is, did I miss anything that could be the problem and in the case that it is most likely a broken wire problem, how would I go about diagnosing it?