Bypass ignition for push button starter..

[gotrootdude]

Ok, I've had this problem a while where intermittently the ignition switch wouldn't send any power to the starter. I'd like to bypass the switch and install a push button starter in the hole for my cigarette lighter.
Which color are the wires that I would need to bridge to bypass the ignition and send power to the starter?

[hot4dl8ly]

From the diagram it looks like the white wire is power to the ign sw and the black with a blue tracer is start signal.