WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.
Secure second windlass by suction on windscreen
Fig 1: Installing Second Windlass
Courtesy of BMW OF NORTH AMERICA, INC.
Feed second wire end into coil
Cut left side and top left corner point, as described above