has anyone even done this? If so can u help me please

yes
maybe

wire a simple relay circuit that only works with key on so that just incase u leave the switch on by accident it doesnt drain the battery

never done this does ne 1 have pics ?

we have a "how to" section for a reason.......it tells ya how to do stuff.

http://www.sr20forum.com/technical-information-library/92554-how-radiator-fan-manual-override.html?highlight=fan+switch

we have a "how to" section for a reason.......it tells ya how to do stuff.

http://www.sr20forum.com/technical-information-library/92554-how-radiator-fan-manual-override.html?highlight=fan+switch

niiiice. thank you for taking it upon yourself to post that so I didn't have to ;)