[Gorf]

The wiring diagram in the Amazon product page shows that the Blue and Black go to a three-pin flasher unit. In which case I suspect the Blue wire goes to the flasher Load pin (L), and the Black goes to the flasher ground pin (E). In this case, if you are only using a 2-pin flasher then you should swap it out for the 3 pin variety.

 

[Gorf]

If you hang tight for a couple days, I ordered one to test out. I'll build you a working schematic when I get it.

 

[Gorf]

Hey @Infinite Monkeys, did you get this figured out? I'm sorry I forgot all about it. But I did take a moment to mock the one up that I ordered and it works fine with a 2-pin flasher for me. Here are a couple comments I found tinkering around:

• +12v -> X pin of the 12v flasher
• Black wire goes to the other pin. The "L" pin. This is the 12v "feed" to all your lights.
• The blue wire is meant to be tied to the "P" pin on a 3-pin flasher which supplies 12v constant. This powers a small led in the body of the unit itself. So in normal operation it glows that central amber lens. And when the signal is engaged, it illuminates under the green lenses. Make sense? The P pin is flashed as well so you get that flashing green on the column. So if you only have a 2-pin flasher you can wire the blue and the black together. You just wont get the constant amber. Probably wouldn't want it anyway except for the emergency flashers.
• The unit itself needs to be grounded nicely for the turn signal indicator to light up correctly. So make sure if you have a painted column or plastic one that you run an appropriate ground up to the hose clamp holding it on or something.
• Pay attention to the front vs rear circuit. The red wire is designed to illuminate the brake light on the side NOT flashing. Unless of course you have a separate circuit for that.

I hope that helps.