I installed Halo headlights. Rear Turning signals are OK, But once connect headlight all turning signals are very brurry, you can pbserve very closely blinking lamps.

Additionallu, I installed HID lights. Once connect it, engine is off.

Does anyone i stalled HALO projector headlight and HID light?

 

I think you need to go back and check your wiring for one thing and use a relay to power the HID lights instead of using the original harness as they will pull more power than the wiring harness was designed for.

 

I have 55 watt HID installed for almost 5 years now on the factory wiring(no relay) and I haven't had any issues. GM uses pretty robust factory wiring, I have however had issues needing a relay in some import vehicles but never in a GM. My guess is it's the lamp/light/housing you are installing.

 

Problem solved. Bad grounding. It works with original headlights but not with HID. Interesting.