72 dome, map light questions

You downloaded the 72 shop manual here?

http://www.forabodiesonly.com/mopar/showthread.php?p=1970088617

I know of nothing better. I will admit, poorly documented

Yes this is the one I have. I have trouble following where wires go and what switches do, wish it had no, nc contacts and more info for relay contacts.

By looking at the schematic on 8-148, does the map switch just ground the circuit? So if I ground the brown wire at the switch, just the map light should light.