2005 Xfire dust getting into my right side headlight. Looked at the headlight back and one of the two rubber covers is missing. Two questions. First anyone have an idea how to flush out the inside of the assembly? Secondly, any idea what to cover the opening to keep dust from getting into headlight? I've already thought of stretching a balloon over opening but that's very durable material. Hopefully I can find an original cover that doesn't cost an arm and leg for such a small item. Thanks