Good place to find wiring schematics???

"We" have a 72 shop manual (and others) you can download right here:

http://www.forabodiesonly.com/mopar/showthread.php?t=132309&highlight=manual,+download

and, as mentioned, "My Mopar"

Click the "wiring, electrical" and go from there

http://www.mymopar.com/index.php?pid=31