This is awesome. Is there much difference from 69 to 70? (I have a 69)
Only difference should be the column connector. '69 should have 2 connectors, one 2-pin for the rear brake/turn lights and a 6-pin for the other wires. Match the circuit number to the function using this diagram and the list below.
Light Blue=12v from turn flasher to turn switch, circuit #44
white-blue=right front turn and indicator lamp, circuit #2
orange-blue=right rear brake and turn lamp, circuit #5
green-white=left front turn and indicator lamp, circuit #3
green-orange=left rear brake and turn lamp, circuit #9
green or 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