OEM (Original Equipment Manufacturer) Advertising refers to a form of advertising where a company pays to have its products or services promoted by another company that integrates those offerings into its own products or services.
In OEM advertising, the manufacturer of a product pays for promotion through the marketing channels of another company that uses, sells, or distributes the OEM's products as part of its own offerings.
A car manufacturer may engage in OEM advertising by paying for promotional activities that showcase their car audio systems as integrated features in various automobile brands.