Solved my own problem. Last year I disabled the side markers on the stock 7.5 tails. Apparently that needs to be enabled to run 7.5 facelift tails. Re-enabled in VCDS and all is well.Hello!
I just installed a set of 7.5 Dynamic LEDs with the DAP harness. 2019 NAR GTI Rabbit Edition. I double checked all the wiring and coding they provided, but I'm still running into an issue:
Brake Lights Work, Turn Signals Work...
But I've got no running lights