I have a 2006 GMC Envoy XL I want to install some aftermarket LED headlights on. I want to use the bulbs from the Company Lasfit that I have seen are pretty nice, but I am worried about fitment of the bulb in the headlight due to the large heat sink on the back. Being that the headlights have a recess for the bulb and the wire and are covered with a dust cap. Has anyone tried to use them with no modifications? And could I use the bulbs without putting the dust cover back on the headlight with no issues?