stock to autometer wiring

RedFish said
Not getting it. Every lamp on the inst' panel gets a chassis ground righ there on the panel except for the park brake lamp. It is isolated from chassis ground at the panel. 2 contact pins on the circuit board are routed to it. One is hot at ign' switch on. The other goes to a switch ( via the black wire ) that provides ground/completes the circuit at switch closed.
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Oh, OK. So I need to run (in my case) the blue with the white trace (switched 12V) to the parking brake lamp. The 20Ga black goes to the emergency brake switch located on the ebrake and it completes the circuit when that switch is closed. Is that correct? Or am I still NOT getting it??