Making the Hi/Lo Boost button useful

[Weyro]

So ive got a couple of fans set up on my intercooler, because racecar.

I want to use the Hi/Lo boost button to switch them on,

Can anyone tell me how i would go about it, ive got the fans straight to the batterys positive, so i need the switch to earth it.

Cheers

[glanzagee]

you will need to wire it into a relay

[Weyro]

do you know which relay?

[glanzagee]

Just a generic 4 pin relay the wires to the switch won't take the current for the fans

[Weyro]

Ok cool, do you know which wires go to the switch? Will it be one of the unused plugs in the enginebay?