I got the panels off and went in thru the speaker hole after removing the speaker. From the inside I discovered there is a hole in the door frame providing access to the whole mechanism and cables but it is covered with the stick on plastic that covers most of the door frame for draft blockage I guess. Its interesting that there is a 2nd piece of stick on plastic the size of the access hole, and over the access hole area that can be used as a stick on patch over the hole you have to make in the plastic to get to the mechanism.

My problem turned out to be the rubber mounting boot on the top cable broke off so the cable was not restrained when pulled. Tried remounting and readjusting it without much success. I may try using some liquid nails tomorrow. Otherwise I may have to get a new cable