Welcome
Nice tractor... I have a new mx5100..
I was told it was okay to do this.
Under each rear fender there is an accessory plug. I had a work light put on and they just plugged it in there.
I am doing to use the other accessory plug and install two LED lights under my canopy. I will have to weld some bracket. I am using led's because of low amp draw and brightness.
So look under the fender where the tail lights are installed, you should see the extra cords