hi, i have a r reg astra 17.td van, how do i wire up my rad fan to work when the ignition comes on as, it seems to be gettting hot, i took it in to a local garage and explained the problem, and that i wanted it on all the time and they asked me where i wanted it mounting on the dash, as they assumed i wanted a fan put in the car to cool me down, so dont fancy letting them have a the van, i use to have a ford that you could wire backin in to its self and the fan would come on with ign, any tips would be great

thanks darren