If you can't get a new one, and can't find a used one locally, I'd try eBay or Pull-A-Part.
I'm not sure what years would interchange, but there are two Cabriolets at Pull-A-Part East Atlanta that were put on the yard earlier this week. It's a long drive not knowing if they are manual or automatic, and if they are automatic, is the part still there . . . and if it's still there, is it any better than the one you already have. I'd go for it . . . but then, I've used needing a connector for the radio wiring harness for my S-10 as an excuse to go play in the junk yard.
