The wiring is the same, I found out that the manufacture for chrysler used cloth insulation and that is soldered to the 4 wire vinyl cover wire harness. The cloth disengaged and shorted out the motor. So the stock motor has no terminals it soldered from the factory to the manufacturer cloth wires. I know this motor will work. Because the switch has a stock internal variable resistor, so no resistor is needed at the motor end. 4 wires coming from the harness and the new motor has 4 terminals. The 3 speed and variable motors are interchangeable. Just need to identify which one is for the red, blue, Brown and dark green on the new motor