I don't remember for sure but it should be fairly obvious if you look carefully at it. some enclosures are attached by a couple screws from underneath, but most are held by spring clips so you carefully pop it off to change the bulb.
thanks i tried to pop it off a little but i didn't want to brake it cause i didn't know iof that was it for sure. nut i know there is no way to get to it from the trunk or underneath it . Thanks for the help i will try a little harder now. thanks again