2010 sunseeker 2300. Mine work with the auto steps on. i.e. when the steps extend with the mag switch on the door., the light goes on, when the steps retract, light goes off. BUT I doubt few of us use the steps in the on position because you have to pause entering and leaving the RV for the steps to extend so most of us leave the switch in the off position. The steps retract when the ignition switch is turned on. The remaining time they are in the extended position. I do not know how they are wired in a TT or 5r. I am going to rewire mine so the step light is on when the "patio" light is on.