Speaker Sizes for American cars

Database created on 29 June 2020 after requests from 2 people.

Coverage: cars sold in United States, oldest car in the list is from 1909, oldest car with speaker sizes indicated is from 1970. It also contain motorcycles but there are no speaker sizes for them. I guess that the source website bought a car & bike list from somewhere and started researching cars, manually adding their speaker sizes.

List of updates:
1 July 2020, 72 makes, 3094 models, 20974 model years (3 not found), of which 12870 been researched and speaker sizes are indicated.