69 camaro non A/C car, heater fan always runs as soon as ignition turned on. Runs only at slow speed but always. When controls are off still runs and will not respond to low/medium or high settings. Part store recomended a rheostat or resistor, something like that which controls voltage that would then work with controls to run fan speed. Have never worked on this area of car and looks kinda painful squirming under dash. Thought I'd test the groups knowledge and see what come up first.