My '93 STS developed a common problem in as the cup holder would no longer lock in the stowed position. Several searches and no luck finding the latch, although I did find the '94 Corvette used a similar one and might have worked. Looking at the latch I could see the "hook" had broke from the spring post, no way to repair that. Look closely and you'll see "SOUTHCO LESTER, PA PAT. APPL FOR" Searched https://www.southco.com/en-us/ and found their site. I went through the online catalog and determined the latch is part # E4-10-201-10. I don't believe SouthCo will sell individual pieces but found this latch on eBay at half the cost of the used Corvette latch. I hope this helps those with this problem.