Put a stock tilt column in a 60s/70s Mopar and you'll find it's a GM column with a Chrysler lock tumbler and adaptor wiring looms about 6" long running from the flat wiring comb and squarish ignition switch plug(s) on the column to the round terminal connector plug(s) in the Chrysler harness. Even as late as the early 90s the tilt columns in the pickups were supplied by a GM subsidiary, although by then the harness plugs clipped right into the column plugs.