Dave,
Here's a video of my installation: https://youtu.be/MIxLi-8Deic
This one is a slow motion clip to show the amber LEDs brief flicker when the brakes are applied: https://youtu.be/8VDm_nGM_-Q

I started by replacing my incandescent lights with a pair of large round red LED taillights. Then heard about the 4 to 5 wire adapter here on RAS, so bought that and a pair of smaller round amber LEDs to come up with this setup.

All that's missing is a center brake light, but these are bright enough that I should be safe safe.

5Z

On Wednesday, August 23, 2017 at 3:17:04 PM UTC-7, Dave Nadler wrote:
What does that 2-wire to 3-wire converter do when you've
got the brakes plus a turn signal on?