Does the turn signal switch mount around the steering column below the steering wheel, or is is it incorporated into the steering wheel hub with wires running inside the column? There are two styles of add-on signals, one type that requires a separate bulb socket for turn signal and brake light, and another style that uses a double-filament bulb and shares the turn/brake signal on the same bulb filament. That type of aftermarket signal switch will have 6 or 7 wires going into the housing, while the earlier style will only have 5.
Jerry
Last edited by Hotrod Lincoln; 02/27/2011 5:48 AM.