Other than Riviera, I also have a 90 Reatta. It turns out that one of the most-knowledgeable people about Reatta in the whole country lives about 5 miles away. Barney Eaton.
In his spare time, Barney keeps busy rebuilding the electric antennas the Riv's use. These also are used in Cadillac and Reatta. This past week he did two of them for me.
The factory cable in these things is a nylon monofilament, which always breaks. Barney dismantles them, and replaces the nylon cable with a coated braided stainless steel cable. Basically, good forever.
I'm not sure what he charges, since we're pals he did mine for free and we're always gifting one another with spare parts. But he keeps busy so I'm sure his rate is really good, I think he does it more to help people than to make money at it, he's pretty successfully retired.
I'm too much of a "newbie" on here to post links, but you can find him if you google search for "Barney Eaton antenna"
