I have an M925A1 and lets face it the headlights SUCK. You can buy the millitary grade LED headlights for $200 each but instead I found and fit a pair of 24v 7" LED lights and it worked great.
Link to lights:
Wiring hints
On the lights:
Black is Ground
Blue is LowBeam
Tan is High Beam
On the Truck:
91 is Ground
18 is LowBeam
17 is HighBeam
To wire:
Black to 91
Blue to 18
Tan to 17
