Radiator Fan Question

[nytescion]

I don't have the sensor on the bottom on my radiator for the fans, due to me having an aftermarket radiator that didn't have the provision for it. My question is, is there a way for my fans to automatically turn on still? The fans are still plugged into their connectors.

 

[steve]

You need the thermoswitch in the bottom of the radiator to turn the fan on. Without it the radiator fan won't run unless the AC switch is on

 

[nytescion]

I know without it in there it won't work. Is there a way that i can get the fans to work (fool it into) thinking it is reading said radiator temp? I don't feel too comfortable drilling and tapping my aluminum radiator. If not then i guess I'm just going to have to wire them through a switch and relay...