3 batteries, 2 motors, controle module. The module has 10 wires, the black and yellow wires go to the motor with the black and yellow, got that. Two matching wires go to the other motor, got that. The large wire is 4 wires wrapped together and their ends match up to wires coming from the handle bars, 2 prong, 3 prong, so forth, got that , those wires I got snapped together. 1 black wire is left and 1 red. Okay positive and negative, got that. This is where I don't got it. I believe before, the positive went to the positive of the first battery and the negative went to the negative of the last battery. For reasons I don't understand the negative of the first battery went to the positive of the middle battery and the negative of the middle went to the positive of the last battery along with a 30 amp fuse. The on/off switch has 3 prongs( what is the extra prong for?) The charging port has 3 prongs,why? There was a wire with a wierd thing on it, I want to call it a resistor, what's this and do I need it? How do I tie it all together, 1 negative wire, 1 positive wire coming off the control module to the 3 prong on/off switch, 3 prong charging port, 3 batteries (36volt) and a fusable link in there somewhere. All these parts are what the scooter originally had, "friend" got as far as just unhooking everything. HELP, I don't want anything to blow up.