The instructions for the 500 are not the same for the 700 and it will not work......I have read, re-read and re re re-read the instructions so I am quite familiar with them.....I have called Honda, they were useless as it is just a call center!---- Nobody seems to know the answer, not my purchasing dealer either.....I think the mistake is on page 4 of the instructions, step number 10. It says: connect the horn sub assembly to the accessory sub harness with two bulb connections." By doing this, there are NO available connections for the actual horn switch which requires TWO connections..... Tomorrow, when it is daylight, I will try to connect only ONE bulb connection then try to loop in the switch......it is not color coordinated like the other connections unfortunately..... One connection on the actual switch is red and the other is blue....all the other connections are at least color coordinated.... The diagram is also the worst I have ever seen....BAD BAD BAD Honda! Shame on the tech support or lack thereof too! Are you LISTENING or reading??????