Dave, Congrats on getting your turn signals installed. Were you able to use the older case on the newer switch?
I am in the process of wiring a 4 relay block to use my old 4-wire turn signal switch, but just discovered that in order to be able to use 4-way flashers with the ignition off, the turn signals will also work with the ignition off. Both the flasher and the signal switch need to be powered at all times. Even with the original wiring for the 4-wire it would have to be that way. I just have to remember to turn my turn signals off when shutting down the engine. Probably a minor thing.