L66TEY, your problem is that you want to swap a spring return switch with a non return switch, your original switch has 4 connections, i didn't measure them but my guess is that 2 are for the activation of the indicator relay and 2 for the warning light. the only way i can see this working is with a spring loaded switch and separated warning light and this for each side. Or .......................use your new switch but with all new wiring for the indicator circuit and that includes a new relais.