dMy key ignition switch on the 1994 Dodge Grand Caravan has as the halo light ring, light not used though small sedans did. Is it configurable to be used since I have the wiring to it? Did Dodge use the switch for the van solely for its ignition and starting capabilities, not for the halo light effect? I found it in a schematic for the RAM truck, not in the service manual for my van.