It must have been one of those ideas that seemed good at the time because nobody had tried it before. But that could've been Chrysler's clue...
In 1956 Chrysler decided to offer its top-of-the-line models with appropriate top-of-the-line technology. The company's new-fangled Highway Hi-Fi was a premium option that gave you a banging sound system, which slid out from underneath the dash. This must've been amazing at the time, and naturally Chrysler hyped its Highway Hi-Fi with ads all over America.
Just the previous year in 1955, Chrysler had already announced its transistor car radio (replacing old vacuum tubes), in the Wall Street Journal no less, so the carmaker had an acquired reputation for in-car audio.
When the new-for-1956 option appeared, drivers operated it via a button that dropped a turntable from the dash and played vinyl records. As you may have already suspected, this amazing new technology came with a major problem: skipping records. Remember those early portable CD players? This was a bit like that, only much worse.
It's no surprise then, that Chrysler quickly hushed its Highway Hi-Fi and dropped it as optional equipment after just one year on the market. The technology tried to make a comeback later in the decade but the same issues killed it off again. Soon enough, eight-track tapes solved the massive skipping problem and ruled in-car audio (only in the US though) until cassettes appeared in the Seventies.