I can't speak for a '72, but for a 1970 A/C electrical and vacuum hose diagram, it's found in the electrical section of the Factory Assembly manual AND in the electrical wiring diagram booklet avaible for less than $10 from most restoration suppliers.
Coppertop, I have the 72 Wiring diagram booklet, but it's not shown there. All I see in the assembly manual is where to connect the individual plugs, not the point to point connections I'm looking for.
The 72 Passemger car service manual has a point to point wiring diagram. You've got mail.
Rick 72 El Camino TPI 350/700r4 NECOA #00149
TEAM CHEVELLE #0038
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