PCC Sparking Pole Shell Swap

[robby]

I'm doing a shell swap and was wondering about the wiring to the sparking pole. Are there any polarity issues, as it does appear one wire is longer than the other. Has anyone done this before? I ended up with a cheap duplicate car and purchased a replacement shell and pole, so I'm just changing out to a different city. My apologies if this is posted elsewhere. TIA

[bapguy]

It should be an LED in the pole. So, polarity matters. If you wire the pole up aand it doesn't work, reverse the wires.