Just when you think you're finished with something, you're not.
Why a vendor sells you a $600+ item and then forces you to spend your time researching, modify & hoping for a positive outcome is questionable. ACK's ELT installation was thought to be straight forward & relaxing. It was not. The company forces you into fibulas attempt of soldering four wires onto a little piece of crap DIN Connector & then to go out to your "local" electronics store to purchase a LED, a resistor & two attachment clips to test the installation - all BS. What did I just pay for?
At any rate, as I always say: "Every day is a Learning Day"