There is no new wiring on Kwikee steps. The ONLY difference is the door magnet switch. Your profile lists a 2014 Motorhome. That means your existing magnetic switch is the correct one for the new steps. Older(more than 10 years and older) Kwikee steps had a different magnet. You CANNOT make the steps stay retracted. They have a LAST OUT feature that will ALWAYS extend the steps when the door is opened. Regardless of where the ON/Off inside switch is on or off. The inside wall ON/OFF switch keeps the steps extended when it is turned off and you close the door. The YELLOW wire in the 4 wire plug is a IGNITION ON hot wire that tells the steps to retract if the door is closed and you have the steps locked out to stay extended. Verify that the Yellow wire is dead, has NO 12 volts with the Ignition key OFF. Doug