Spindle/router connector pinout

Does anyone have information which wire outputs voltage when it’s supposed to switch on the router? I use the makita router but I also have a lot of solid state (mosfet) relays around due to the things I do. The relays need around 3-30V for the control side and I can connect around 40A so more than enough for a router. I am really tired of switching the router on and off so spending $10 to make it automatic would be a good idea. I just need to know which wire/pin gives voltage when the router is supposed to turn on.

The original Carbide Control boards and the Warthog controller out 5v for the on and off of a trim router and 0-5v for a VFD/Spindle.