This is not a Plug-and-Play Harness for older versions of AMP steps. This harness is designed for AMP's newer Plug-and-Play AMP steps to allow folks who have dashboard monitors to use their OBD-II Port for both the steps and their monitor of choice. Your steps likely need to be wired into the door wiring for proper operation. Your best bet would be to give us a call directly at 1-877-578-2433 so we can verify the part number of your steps so we can figure out what you need to do.