Magnum and Wiring Swap

Also, I read that OBD II uses a transponder key and theft deterrent system. One guy suggested that if you have the ignition switch and key, hook them up and tuck them away in the dash. Another suggested using a tuner to turn off the theft deterrent system.
I don't have the ignition switch, key, or the dash side of the harness. Is there way around this, or do I need a tuner?