Just did this on my car. Rip out top-most "windsheild gasket" It's not really a gasket, a cover, or weatherstrip or something. It just pops out, requires a bit of force, but I don't believe I broke anything (haven't put it back yet)
This is before or after you take out the cover piece over the motor.
Pretty easy think to do once you get comfortable with applying some force to the windsheild piece. Remove the wipers and motor - save 15 lbs!