77 column in 73 Bronco wiring clarification

[rjrobin2002]

http://cdn.wildhorses4x4.com/downloads/Turn Signal Wiring 06_30_08.pdf


I am installing a 77 column in a 73 Bronco and have researched the wiring and this is where I am at.
Theses are the same from 73-77:
L front "Green/White"
R front "White/Blue"
L rear "Yellow/Blue"
R rear "Green"
Turn Flasher "Blue"
To horn "Blue/Yellow"

Here are my questions/thoughts:
I am assuming I leave the 77 column Hazard "white/red" alone cause my hazards are on my dash.

I can run a power wire tied into my light switch to the 77 column "Blue/orange" wire to give me a indicator light.

What do I do about my 73 factory horn wiring "Yellow" that was my horn power?

And where does the turn signal switch get its power from?

 

[Viperwolf1]

'72-'73 Column Connections
Blue=12v from turn flasher to turn switch, circuit #44
white-blue=right front turn and indicator lamp, circuit #2
green=right rear brake and turn lamp, circuit #282
green-white=left front turn and indicator lamp, circuit #3
yellow-black=left rear brake and turn lamp, circuit #283
red-black=12v brake switch to turn signal switch, circuit #810
yellow=12v headlight switch to horn switch, circuit #460
blue-yellow=horn switch to horn, circuit #482

Hazard power wire can be left as is on the dash or can be run to the column.

Cluster lighting is blue-red wire.

You'll need to add a horn relay. This can be done under the dash. The new column switch will provide a ground trigger to energize the relay.

Turn signal flasher provides power to turn signals.

 

[rjrobin2002]

Thanks for the help.