fans wired to ignition

[Niall]

Not the best idea having them on an ignition live (Cough Ruan) It would be better to have them on a switch so you can flick them on or off whenever you want.

You basically want to use a relay and have a high amp wire off the battery to the relay, and then from the relay to the fans, then from the fans to earth. And also an igintion live to a switch on the dash, then to the relay, then from the relay to earth.

I can draw up a little wiring diagram if it will make it easier to understand

orr......we could make things much simpler

The fans are already run off a relay so all you need to do is tap into the wire that activates the relay and job is good

Saying that, having the fans on all the time is not a good idea!