After doing a little research, I believe that the resistor for the "Lo" voltage setting on a 1981 Spider is located in the blower motor itself. If that is the case, then I just need to add one relay before the blower switch. I will use the original power source to the heater switch to trigger the relay (pin 86 on the relay). This will the trigger the relay and provide direct power from the alternator to the switch and then the switch will provide power to the correct circuit in the motor for "Hi" or "Lo" speeds. This way I will bypass going through the ignition for direct power to the blower motor but still get high or low speeds through one relay.
Could someone confer with this or am I missing something? If not then I will have to use 2 relays for - one for the high speed and one for the low speed from the switch.
Again any input would be appreciated.
