Bornco You can trip that hook in the square 2 wire connector to release the 2 wires,then raise the hook a little,put them in your new flat connector that plugs in. If you go to 1-wire alt. that eliminates those 2 wires. If you buy a 1-wire kit it will have a rubber plug to cover the flat plug-in hole. Think I have seen others fill the flat connector hole with silicon caulk.Anyone else see that ??