Where can I get outlet that plugs into this harness for 12v outlet..?
As has already been said, the two smaller plugs in there are for the heated grips. There is no power at those plugs. The larger connector is for the fog button. In that connector there is switched power on the pink/green wire, as well as a ground wire. How much power you can get from that wire I do not know. It is designed to light a small LED in the fog button, as well as send a pulse to activate the lights. If you were to buy a fog button and cut off the button you would have the harness you need. As TechRider already mentioned, this bike is computer controlled, and very sensitive to adding electrical devices. There is also a lot of unswitched power that is always hot, so you have to be careful.
If you remove the fairing there is an unused connector with 12v power. If you look at TechRider's fog light install you will see the 16 pin connector he used for his lights. That connector has two red wires that come right from the fuse block, as well as two pink wires that are switched power. The red wires (RD/DG) come from a 25 amp fuse labeled VCM3. I used a red wire to power my fog lights and used a pink wire as my trigger, and there has been no problem with the bike's electrical system at all.