An accessory arm for a lift truck includes at least one rear attachment mechanism affixed to a rear overhead guard leg of the lift truck and a front attachment mechanism affixed to a front overhead guard leg of the lift truck. The accessory arm further includes an accessory bar rotationally mounted to the at least one rear attachment mechanism and to engage with the front attachment mechanism when the accessory bar is in a closed position. A wiring harness connected to a battery of the lift truck and routed within the accessory bar to a device mounted to the accessory bar, the wiring harness to provide power to the device.