Replacement for the Big Dog EHC module and the starter/key on module for the  2003 BDM. Your harness plugs into our adapter harness. Includes our proven power module, lighting control module, starter solenoid wires, ignition switch wires, and new ignition switch. This replacement is the fix to get rid of the EHC and the module that controls starter and ignition switch power for good. Includes wire to go directly to the starter solenoid from our module as well as new ignition switch and wires.  Fix 2 problems at once.