Here is a diagram of the pin out. It's just like a flat 4 connector except it's square.
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Good luck. But if you want to get into it further look at your owners manual. It has a section with fuse box location and fuse location.well if you are talking fuses now you are way over my head. Don't even know where to look for fuses. I will take it to the shop tomorrow. Thanks for trying to teach an old dog new tricks.
When I was working I had a deal with the m/c shop.... they would not write speeding tickets and I would not fix bikes. Been retired sixteen years and thought I CAN DO THIS.... wrong.
I ordered mine today from Amazon. Search for 4-Way Square Molded Connector 8 Inch Male-Only 1 Min The problem is the shipping is more than the part. Shipping was $7.00
This is the one I got from Amazon https://www.amazon.com/gp/product/B004BE60ZU/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Just to bring my experience with seeking a ready-made 4-pin flat to 4-pin square adapter, some have mentioned that any good auto parts store should have one.
I went to the big three (Auto Zone, Advance, and O'Reilley's) here in Cleveland, GA, and Tractor Supply. No one had one or even seemed capable of ordering one.
That 4-pin square guy just isn't frequently used in the automotive world.
LaMonster has one for about $23.