The autec8 is the module that will control the wiper motor with a momentary push button switch. Press the button for 1 sec is low. Press again 1 sec is off. For high is the same steps but you hold it for 3 sec. The hard part will be to wire the led in the switch to light up while in use. So I'm planning on wiring the led with the high low and use diodes on both the high and low power wires. The diode should keep the high and low Separate so one dont trigger the other.
