I had installed one in Rocky's '03 Mastiff stock headlight. You have to cut the zip tie holding the units together. I assume you actually mean HID headlight. If you really meant LED, then I can't help you because I'm not familiar with a LED headlight, on turn signals. The HID has to be tucked in the rear and the only way to get it all to fit was to disconnect the parts from one another and get them as far back as possible, then stack them.