Would love to see a photo of them lit white... I bet it looks great! :)

Found this out today on a C7 but not sure if it'll work on the B9 yet, if it does then it is a much easier mod. We switched the polarity of the door panel ambient light bar on the C7 and it went from white to red! Just pull the 2 wires out and swap em.

Even my car has only the red light. It lights up in red and then goes off. Doesn't change to white.

Sorry, my mistake. They do glow red when I first start the car, then they turn off.

First off, great work you've presented an opportunity that most people without that section of ambient lighting didn't think was possible.

Quick question, after you retrofitted the new LED into the existing housing, was it a plug and play application or does this require soddering to the existing wiring because it was cut (maybe i missed that part)? I'd like to do this to my incoming A4 if I don't go with the P+

How did you manage to get the door panels off?

Update on ambient lighting
 

Just bought a 2017 Audi Q7 Premium Plus which stated it had ambient lighting which it does but it isn't configurable other than level of brightness. Default color in mine is white, which is pretty. With my option packages and resulting pricing, it would've been worth it to go with Prestige to get the color changing ambient lighting (I thought I was getting). Wanted to share here as this wasn't clear in Audi product materials and my dealer didn't know either.

Ambient lighting turns red upon starting car (gorgeous but I agree could get tiresome) then turns white. MMI and in car settings only get you to brightness of the only white color option.

Thank you you so much for the details on how to possibly "hack" it to display other colors. Since the same strips of lighting demonstrate their ability to also be red, I was curious

Wishing I'd done Prestige but it's a great car. If I can find a shop (or Audi Service) that can do something similar to what you did without voiding my warranty) I'll do it!

I'm guessing what Audi means by ambient lighting is just the lights on the door panel and foot wells and stuff. Just that in the Premium and Premium plus, it's white and I'm the Prestige, one can change colors.
And I don't think Audi service will do the mod for you. You could take it to a mod friendly shop and show them this thread and ask them to do it for yoi if you can't do a DIY.

Hi
I love your mod. As an electronics/software/techie person, I wonder whether we could look into the data signals required for this and mock them up? I have used multicolour RGB LED strips before, but never put much thought to the control harness. I imagine there would be a power circuit and then additional lines to specify hue and flash. Would that account for the 4 wires in the Audi module? If so, wouldnt the info coming from the MMI be similar to the modules you buy commercially? Anyway, food for thought.

I have just bought my first Audi (after wanting one for a decade), a 3-door 2015 S-Line 1.4TFSI. I am hoping to add ambient lighting and your two projects are going to be very helpful in achieving that (so thanks for sharing).

I have only had the car a week, so am yet to go through all the menus, but am pretty sure I dont have any interior LED lighting and will have to add it all from scratch. Once I get the door trim off I will send a photo of the inside of mine. Do you have any helpful resources on disassembling the car (as i dont want to break anything on my new baby)? Like a maintenance manual or Haynes equivalent?

Any other information greatly accepted too (seriously, I have a list things I want to figure out/change, not least of which is why the damn MMI scroll wheel seems back to front to me) ;)

Thanks
Robyn

this is what I'm wondering as well. I'd be happy just to have the side warning lights stay illuminated red at night. This seems to be something that can be achieved through coding rather than re wiring the door, no ?