It is pretty easy to by-pass. In the headlight pod there is a disconnect (grey two prong), just unplug that connection. Then find a two wire horn button and hook it up to the connection that you just unplugged.
It also disables your brake lights but you can still start the bike by pushing the button and turning the key at the same time.
I just ordered a hydraulic break switch that screws into the foot brake. When you step on the rear brake peddle the hydraulic pressure closes the switch. Just run a set of wires to the pod. Step on the foot break and turn the key.