A couple of items...
I was actually hoping to talk you out of installing a fan switch.
The most predictable & reliable state of any machine is always "stock".
My tricked-out Jeep TJ is the poster child for this theory.
There is no video that shows this mod.
There is no way to do it without hacking into the harness.
There is not really enough room under the right fairing to do the double-connector trick you spoke of, however Eastern Beaver makes a similar device for killing your second headlight on a motorcycle thus proving that your double connector concept is indeed a good one.
I am in the process of trying to locate a source of Vee fan switch connectors and sockets but am having no luck as of yet... http://www.stromtrooper.com/dl-1000-...connector.html
So, if you don't mind hacking into a harness for which there are no replacement connectors available, I can whip up a quick hand drawn schematic and post it.
BTW: There is no elegant way to add this much copper & plastic to your harness. Once you start hacking and adding to your bike its, well... no longer a virgin and there is no way to go back.
Kind of like getting a tattoo.
If you really want to do surgery, and you are new at this stuff, (I'm assuming you are), then your life will be a lot simpler (and cheaper) if I assemble a fan switch kit and send it to you via a PM.
The components I use are harsh environment/high-end, not Radio Shack crap.
Think it over.