Instead of cutting off the original plug and splicing in the resistor, I decided to take a different approach.
Purchased the matching plug at Ballenger Motorsports. http://www.bmotorsports.com/shop/pro...roducts_id/570
Then simply (but carefully) soldered the resistor (22ohm 1/4 watt) to the terminals and inserted into the plug.
After testing, I wrapped the whole thing in quality electrical tape.