Yeah....I found the best place is to just tap across the drier switch with a cabin sw ...that way you have LOW fan [ which does not drain so much power off alt , yet enough to have airflow]..what is nice about that set-up is you just leave it connected and when the sw is OFF, the system is back to stock and works according to normal spec., but you have the option of Over-riding the system b/c your cabin sw is in parellel once you turn it ON..best of both worlds,

Another advantage to cabin sw over a resistor bridging at the ACC sensor [ blu 2 wire temp sensor modification] , is you do not have to worry about the temp differential between cut-in/cut-out.... with a cabin sw, it is at your discretion and definate ON/OFF...