The Chevelle, by Chevrolet, was introduced in 1964 along with the part car/part truck El Camino.
1964 Chevrolet Chevelle & El Camino Radios
1965 Chevrolet Chevelle & El Camino radios
1966 Chevrolet Chevelle & El Camino Radios
1967 Chevrolet Chevelle & El Camino Radios
1968 Chevrolet Chevelle & El Camino Radios
https://www.auctionrequest.com/arfeed.php?uid=fai5f4bc4c44dcc&keyword=1968+chevelle+radio+-%28bluetooth%2Ccd%2Cusa%29&categoryId1=80741&sortOrder=EndTimeSoonest&programid=1&campaignid=5338167211&toolid=10039&listingType1=All&lgeo=1&feedType=rss
1969 Chevrolet Chevelle & El Camino Radios
1970 Chevrolet Chevelle & El Camino Radios
1971 Chevrolet Chevelle & El Camino Radios
https://www.auctionrequest.com/arfeed.php?uid=fai5f4bc4c44dcc&keyword=1971+chevelle+radio+-%28bluetooth%2Ccd%2Cusa%29&categoryId1=80741&sortOrder=EndTimeSoonest&programid=1&campaignid=5338167211&toolid=10039&listingType1=All&lgeo=1&feedType=rss