Yamaha Ignition Switch - Which wire do I connect my hour meter to?

[WestTexasRanger]

I'm installing an in-dash hour meter on my Ranger Reata.

It has a Yamaha SHO with Yamaha Controls & Yamaha Ignition Switch.

I need to know what color wire is "HOT" only when the key is "ON".

I already know that the RED wire is constant hot.

The connectors are all Sealed, so I hate to start "poking & probing" the wires with the point of my voltmeter.

Thanks for any help!

[WestTexasRanger]

Got my answer on the Electrical/Wiring Forum.

The answer was "the Yellow Wire".