Due to the popularity of Apple's iPhone, over 24 million vehicles could feature the company's CarPlay infotainment system by 2019.

Apple is expected to reach that milestone thanks to a number of automakers who have gotten on board as partners, and the company's ability to increase interest in its products, according to a report from market research firm ABI Research.

Approximately 29 automakers are on board as partners

"Many believe Apple is creating further fragmentations and a ripple effect in the industry by not being open," ABI analyst Filomena Berardi said, according to Apple Insider. "However, love it or hate it, with Apple on the scene it certainly draws greater attention to in-car apps and now with the Android Auto standard on the scene both will certainly drive adoption of in-car apps."

Apple unveiled CarPlay for iOS in the Car during its 2013 annual developers conference in San Francisco and announced the first CarPlay-equipped vehicles at the 2014 Geneva Motor Show. 

By using the service, drivers will be able to listen to voicemail messages, access contacts, make calls, and control apps like Pandora and MLB at Bat through either Siri or the car's in-dash touchscreen after connecting an iPhone.

CarPlay partners include automakers like Alfa Romeo, Audi, BMW, Chrysler, Dodge, Fiat, Ford, General Motors, Honda, Jeep, Kia, Mazda, Mitsubishi, Mercedes-Benz, Nissan, Ram, Subaru, Toyota, Jaguar, and Volvo.

Apple's rival Google introduced its own automotive initiative called Android Auto recently in order to compete with the CarPlay service.

Essentially, the service is the same, expect for the fact that Android Auto only works with Android devices.

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