W205 64 colour ambient lights kit not working
Have you managed to make them work? I was in the same boat around 2 months ago. I'll be happy to assist remotely.
Yes that is right. The brown plug needs to go on the driver's side CANBUS instead of the passenger side.
For the rear doors I took out the plug, which was in socket 6, connected it to the female socket on the LED harness and plugged the male socket of the LED harness into socket 6 on the door panel. If it doesn't work for you then disconnect the battery, reconnect the LED harness to another socket in the same way as above, reconnect the battery, start the car and check if the LED lights come on.
As long as you have the original plug connected to the car through the LED harness, you will not get any errors. Just make sure you disconnect the car battery before trying other sockets on the rear door panel.
Lemme know how it goes.






