There are only 2 wires to move and 1 to add so the wiring is the easy part. You could cut the opening in a standard dash large enough to accept the rally panel but... All the screw holes that are there now are in the wrong locations . Plus those places where the rally panel needs screw holes may not have metal there for the hole. The ignition switch bezel in the dash makes a nice home for something other ( like right door mirror remote ) when its not housing the ign' switch.
Aren't the connectors that plug into the instrument panel completely different? What I see is flat inline on the '70 standard dash and round (Gatling Gun barrel) type on the '69 Barracuda? What am I doing/thinking wrong?
I was hoping to pull the circuits/wire connectors out of the '70 harness connector (disguarding the inline insulator) and install them in the correct position in the '69 round insulator/connector. :?
