Sometime in '88 was when Gm changed to the new-style wire connector and miniature Motorola antenna plug. But i have converted my car to the smaller style antenna and new-style plug because i needed a radio and i picked up a very nice delco cassette (the factory optional fancy one) at a junkyard for $18 bucks. But maybe i'll just leave the one i have in there and use my cassette adaptor, but i need to buy a new one of those. Mine only likes to play out of the left channels unless you sit there and jiggle the cord for 5 minutes. Thanks guys.
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