Should be the same as a 69:
http://www.abodyjoe.com/pictures/Misc. car info/69 dodge service manual.pdf
Page 8-99 is specific to the console
Engine bay is 8-101 Find T11-18GY/T coming off coil neg. This goes through a separate grommet in the firewall
Now what's BETWEEN is not really shown, LOL
You can get some idea by looking at the Cornet wiring page 8-105 / -104
The 70 manual is just as bad:
http://www.abodyjoe.com/pictures/Misc. car info/70 Dart Challenger Serv Man1.pdf
Page 8-89 is the engine bay, this time they actually depict the firewall grommet but little else for the A body, and 67 doesn't show where the rest goes in the instrument panel either.
Basically you have ground, lamp, trigger and switched ignition power
Black, ground
orange, lamp
violet or dark blue, power
dark green trigger
