When was the last year cassette decks were put into new cars?

While there's no single definitive date, the last year cassette players were commonly included as standard equipment in new cars was the early to mid-2000s. By 2005, most manufacturers had phased them out in favor of CD players and increasingly, in-dash CD changers. Some lower-end models may have lingered a bit longer, but by 2010, it was extremely rare to find a new car with a cassette deck.