Two places are for the light on the button and the other two are for the ignition and starter....first you have to figure out which are which...did it come with any directions? or does it say on the switch part?

 

Heres a link:
http://www.focusfanatics.com/forum/showthread.php?t=66373

 

red wire and grey/black strip wire go to 2 and for the light portion....one is a ground and one is to a 12v power source that gets power only when ignition is on....before u do the install u need to know which terminals are for which...