Welcome, Wendi! Though this diagnosis hasn't come up for Bonnevilles, you might be the first to have weak wires. It probably takes about that long, anyway. What I think happened is that over time, as the doors kept being opened and closed, the wires wore out. Maybe just a couple wires, but that could be enough. Please try a few other things first since this is a bit tedious, but you could pull back the boot connecting your chassis to your door and see if there are any broken wires in there.
Also, you'll receive email notifications about people posting in this thread, and it will be business as usual, but your thread has been moved to the correct section. This still behaves the same as if it were still posted in the lounge. By being here, it will get attention from knowledgeable people who stick mainly to this area.
94 STEi and 99 SLO