There is a lamp that comes on in center consule for shifter when you turn on key. Tapping into that will turn the fan on when you turn the key on, no need to forget to turn on the toggle. But is geeehtooo. I know, that is how i had before, and is why I would tie a temp sensor in rad. It is what I am working on at this time. (well been lazy) went and got the stat sensor replaced, and replaced the one on the block as well so that I can get it back to stock. My trouble now is that the relay kicks in and got correct voltage to the the sensor, but I get no power at the fan. I also cant get it to come on with a/c cause it is not charged so a/c not working, plus the fan control switch has a short, and nothing will work until fan comes on. Did an 8" super+ from rk with rear coil over. Which I had to take out the gabson cat back and magnaflow cat I just put in. So I cant run the engine to see if fan kicks in when warm.