Since we have to be physic to answer the question, I’ll take a stab at it.
Red wire: power
Black wire: ground
Yellow: back light
Blue: mode change for hours minutes etc.
Let me know if this is old guess is close 😂😂😂😂😂
2012 JD855D OPS Black Poly Roof, Deluxe Cargo Box, Front and Rear Protection, Power Lift, Front Hood Rack, Rear Screen (homemade), 800 Watt Inverter, 2500lb Winch installed in cargo bed, Front and Rear LED auxiliary lighting (4" square 27 watt), Front and Rear CV Guards, Koplin Side Mirrors