Not sure anything will be plug n play - you will have to run wires to "something"
It really depends on what you are thinking - you want long bar lights?
or smaller individual lights?
Personally - I would NOT run them inside my OEM Kubota wiring - I would get a "kit" - they are cheap and run your own circuit, straight back to the battery via a relay. Easy - Peasy.
There are all kinds of kits out there - find one you like and then buy the relay kit - sometimes they are sold together.