Pulling Cutting Wire Into Car:

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

Push wire starter (2) from inside at a suitable point through adhesive bead

Fig 1: Feeding Wire End Into Hole Of Wire Starter
Courtesy of BMW OF NORTH AMERICA, INC.
Feed wire end (1) into hole of wire starter (2) and bend back
Pull in both wires in succession crossways

NOTE: Crossing the wires cuts through the adhesive bead completely.