After a detailed google and ebay search over the winter months, I've come to the realization that the only way to get LED DRL's on our non-limited's, is to swap out the entire headlight assembly for each side. I don't need HID headlights but would love the LED DRL's. However, after viewing hundreds of pictures on ebay of people selling these in every condition, there seems to be some additional internal electronics within the headlight assembly. With all outside components removed, one view I saw had a circuit board mounted inside. My guess is this would have some influence on the LED DRL's, (Daytime operation and "parking light" operation 6-LED's vs. 1-LED) headlight (HID or Halogen) and hi-beam halogen (limited) vs non-limited high beam and halogen low voltage DRL's. Swapping components from a HID LED DRL assembly may not work, I have yet to secure one of each to test. I DO feel however that a whole assembly from a Limited will function as intended on a say Touring, Touring L or L+. Fingers crossed for plug-n-play installation. Stay tuned..Hi
This topic seems to be not active - but for your information, after searching on the internet, I found out what is the DRL (LED) difference between the Limited and lower level trims. It seems that the LED driver (ballast) module is slightly different - see attached picture. The limited has totally 6 LEDS on the board while the other has only one. It means, the light source is ON THIS PANEL, and not in the headlamp body. The headlamp assembly has only a passive "light tube".
The "high power" version has metal heat sink - but the fixation and connection seems to be totally compatible.
I'm wondering if anybody has a chance to test this module between different trims (located at the bottom of the headlamp assembly unit).
Because the light source is "easy accessible", theoretically it could be mod to have dual color LEDs on it - so the light strip would flash on yellow