I wasn't aware the Rushmore Kings still had the 4-pin. I thought the CANBus bikes had the extra wires.

 

I've already fixed it up. Messed with the diagram. For RK it shown as 4-pin but actually the housing is still 8-pin same as fairing models (14-16 fairing models have 5 separately switched accessory circuits while non-fairing have only one)

 

I have a Y-connector attached on my 2013 King. One is for a USB power port going to my bars and the other is used to power my detachable batwing.

 

I'm thoroughly confused but it doesn't matter. If the previous owner messed with the switches and wires they did a darn good job - I don't see how the wiring that is in place now can be done without removing the gas tank. Also they were professional and courteous to use connectors. They even replaced the sticker on each toggle switch! I mean, why? LOL. This bike barely had 2400 miles when I got it; BUT the lights were all upgraded to LEDs so who knows what else was done to it.

 

This side? Does this look right?

 

That looks like the pic in my previous post. The one circled in red should be the one.

 

Yes it is. I double checked with my multimeter. Thank you!

Now I only need to know what connector is that so I don't have to cut/solder and preserve it the way it is.

 

If @Ya Tigor is right on the 4-pin setup, then the wiring might be similar to my 2013 King, but check with your meter. Below is similar to my King and I built a Deutsche plug for my USB power port to run to the bars to power my GPS and phone. The wire colors might be different though. I also use a Y-connector to use the ACC plug for other things. Good luck.

 

So what do you call a switch with a mount like this? See the groove/channel across the thread - it's used to center it straight and not turn.

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I want to find a push button like that with a "groove" to trigger the garage remote
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You can find those momentary switches at a lot of places, like on Jeff Bezos' site. Not sure but I think your toggle fits a std 1/2" hole.