I purchase a guide jaw for the rear LH window regulator. The one that was in the car was broken i.e. the gray plastic that holds the cables and attches to the metal piece was in pieces. The guide jaw does not look like the one that was in there, with the exception of the square white piece that fits into the bottom of the window. On the new one there isn't any place to hold the cables and the cables are too long. Can someone explain to me how to install the guide jaw and adjust the cable to the correct length. Thanks