David, you are correct. The wires are held up - out of the way of the tumblers by way of a tray/stopper that slides in from the door jam side. The wires would easily get pinched and damaged if they are left loose without this holder.
John

__________________
1999 E300 TD
1999 E300 TD, WVO conversion
2007 Jaguar XJ8
1993 190E 2.3, Limited Edition, 239,000 miles (sold)
1991 300 SL (sold)
1977 MGB
1969 TR6
1980 TR8
joturbe@comcast.net