Alright guys trying to figure this one out.. 05 tb ls i6. Did the quad diode mod at front fuse box and installed just like i had before on my own and numerous other gmt.. And it didnt work. Low beams didnt come on, and highs were dim. Took the diode out and lows and highs work like they are supposed to with the switch, but now no drl, or flash with lock/unlock.. How can this be if drl and the flash is controlled by the bcm? Is there a fuse or something im missing?