Yep, I think we were on the same train of thought! I've got about as far as I can go without contact Polaris or a dealer. I've been researching aftermarket switches that could fit that spot. Can you do me a huge favor and take a couple pictures of the plug when you get it? I tried to remove mine but I didn't have enough time and didn't want to break it.
I received the plug for the fog switch and it is just held in by friction. Looks like it will pop out pretty easily.
I also spent a few hours at the Indian dealership yesterday. I talked with the parts guy and the GM and neither knows anything about this fog button. I looked at all the different Indians in the showroom and they all have the same fog button, and it looks like it is the same size as the Challenger plug. The used bikes and the new bikes with fog lights, look to all use the same button.
I would not want the chrome bezel on my Darkhorse, and would change it, but I don't think this button is going to work on this bike. When I look at the parts diagrams of the different models with this button it shows the button with no electrical leads coming from it. The power button looks the same for those models, but in the Challenger diagrams it shows the power button with wires. I would like to see a schematic of the switch used on the Chieftains to see if they are indeed the same. Whatever button they put in there will have to have leads and a connector. I could probably find a way of using the button from a Chieftain to operate a relay and allow 12v to the lights, but the parts guy and GM warned me that the CAN bus system may not like that and start sending out error codes. I've always added whatever I wanted to my bikes using relays and switched power, but maybe not on this one.