ok im wiring in a msd window switch and i have most of the wires ran. relay is hooked up and the WOT switch is hooked up and i have the red wire from the Window switch tied into the WOT switch and the white wire from the msd into the ECU..were does the yellow wire go? I am not using a FPSS at the moment..thanks,Tom

 

im trying to wire in a MSD window switch.
the way my system is wired now is just with a WOT switch..i connected the white MSD wire to the tach,red wire to 12+ AND BLACK TO GROUND. were does the yellow and gray wire connect? this looks a little clearer then my first post..thanks for any help

 

Toggle switch gives 12v to the wot switch
Wot switch gives 12v to the window switch and low amp side of the relay
Window switch gives ground via yellow wire to the relay
Relay gives 12v solenoids

Thats how I did mine.

 

I just didn't use the yellow or gray wire, works fine

 

if you didnt use the yellow or gray how does it activate the solenoids?