One of my amber roof light went out and I'd like to know how to change it. Do I just pull off the rubber gasket and remove the plastic cap? I started to do just than and thought I might want to wait until I know its the right thing to do. Also my sunroof drain line is clogged and when tit rains hard, water comes in my onstar mic hole in the roof. I tried pushing down a peice of wire down the drain hose but it lets me push it down about 3 feet then it stops and doesn't clear the blockage. Does anyone know where the other end of the drain hose ends?

Bri...