Wiring.
This is the part that took the longest, and was the most annoying. I hated bending over the wagon on the floor to do all the soldering and wiring. Once complete, I had the motor controller, speaker amp, and switch box mounted to the wagon. The switch box housed the main on/off/charge switch + 12 volt accessory and blower switch.
The blower was installed to cool the motor while at low speeds. I used a 12 volt marine blower attached to a series of plastic tubes to force air through the back of the motor. The cooling system not only cooled the motor, but prevented sand and dirt from entering the motor housing.
After testing the Wagon at the beach, I found that the fan could only remove so much heat. After prolonged low speed, high torque activity, the motor began to get really warm dispite the blowers addition.
