Drl's run at a 70% pulsated signal... I'm not familiar with the GP platform as much as I am with my SS.. I know for the trailblazers, we need to kill drl's or do the capicitor mod at our BCM.. without those, we run into major problems with HID's.. if we do the cap mod, we don't need relay harness' as the cap mod makes the drl's function at 100%.. and a relay for the tralblazers only protects the stock wiring, has nothing to do with make drl's run at 100%.... but it looks like the GP's are slightly different.. that's why I won't run them in my '01 GP, stupid auto headlights and drl's.. I know how to kill the drl's but since I have an '01, I can't pull the drl fuse to kill the autolights too...