Thanks -just read a few posts of people reporting issues with their signal lights not working and it wasn't clear if it was due to errors in their wiring or not completing the coding part. I'd just rather not take the old coding laptop on vacation with me or drive from AZ back to Canada without signal lights!

Sounds like a reasonable course of action would be to do the full install, without coding, and see if the car works as expected. If not, then pull the AHM module which should hopefully get things back to normal where the car isn't surprised by having any hardware bits reporting back without being added to the VO.


EDIT: Update on this... I haven't done the coding yet (plan to do that today), but I installed the wiring harness and AHM hardware module without doing any coding changes and didn't have any issues at all with errors, lights not working, or things like that. It did throw some codes since I had to move the car partway through the work, so my rear lights and proximity sensor were unplugged, but those cleared easily and nothing else popped up.