your probly right on target with this one, the 900 series fan has the relays but as you stated the relays are neg switched, the only way to get around that would be to reverse pol's but then id have a pusher fan and that wouldnt work to well if the A/C fan ever kicked on. guess for now since i cannot make it automated im going to keep the orignal. i dont want to have to switch it on and off from inside the cabin, i wanted it to be on low with key and high with A/C fan. no biggie ill just throw the electric fan in the shed with all the other stuff im not useing. thanks for the replay though, it does confirm what i thought, that being there are no switched neg's i can safly tap into under the hood.