OK, I looked at the wiring closer. In the front, I have a single spade connector with a white wire, another single spade with a yellow wire, and a 2 pin black and red wire connector. There is also a single round brass bullet style connector with a gray wire. All of these are "open" and are just tucked in with the headlight wiring. They are not connected to anything.
The parking light which has a 2 pin black and blue wire is not connected from where it comes out of the headlight pod.
In the airbox, I have only the black and purple 2 pin connector that is wrapped up, it is a very long wire. The 3 pin connector with the purple, white, and green wires are connected to the brake/tail light.
I do not have the factory turn signal/headlight/horn switch. I read in the manual from the scematic that the red/black may be the horn, and the others don't make any sense. Maybe the factory switch has the appropriate colored wiring on it, and these just feed into the switch?
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'10 EC300 -- very happy 
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