BlackIceLSC said:if it is soft enough, just tuck it into the channel. Lift the outer lip up, and roll it down and inward, tucking it into the channel between the glass and the body.
The seal along the roof of my window was so bad, that i trimmed it off(with guidence from Chris).
I then ran a clean seam of black permatex to ensure proper drainage, and no leaky.