I am looking at putting a 12v thermo fan under my intercooler. I want to just run a switch in the cabin so i can turn it on or off when i want to. Can anybody give me some help on the wiring or a wiring diagram would be great...... thanks
I use 12 Volts off the Accessories thru the cabin switch to a Relay. The Fan power is direct from the battery (fused at the positive terminal with an inline blade fuse).
The reason I went for the Accessories feed to switch the relay is that lets me keep the fan running for a while to keep air circulating as the ZD30's run a pretty hot engine bay.