Just did mine! We are almost there. The headlight ribbon DRLs look great. Unfortunately they do not dim with the parking or headlights on.
I need to find a normally closed relay to open the circuit when the parking lights come on. That should make the headlight ribbons dim correctly. The headlight ribbons at full brightness seem like they could blind others at night.
Using the DRL circuit in the fuse box ( F40 ) I energized the Left and Right DRL Lamp. We also placed a diode between the fuse and headlights to prevent back feed of voltage.
Checking out the headlight wiring diagram I found the below:
Driver's side parking light wire: White with Brown stripe--> turns on parking light and low ribbon LED intensity
Driver's side DRL Lamp wire: White with Yellow stripe (pin 3) --> Lights headlight ribbon to max intensity
Passenger's side parking light wire: White with Orange stripe-->turns on parking light and low ribbon LED intensity
Passenger's side DRL Lamp wire: White with Dark Blue stripe (pin 3)-->Lights headlight ribbon to max intensity
I will keep them wired up like this for now until i find a way for them to automatically dim.