Amazon Alexa Custom Assistant headed to FCA cars first The Alexa Custom Assistant will coexist with FCA's own voice assistant, and the new technology will let other carmakers do specific things with the tech. Listen - 01:24 Alexa grows smarter for the car. Amazon AmazonAlexa built into vehicles isn't new, but Alexa Custom Assistant sure is. On Friday, Amazon and Fiat Chrysler Automobiles announced the new technology will head to the carmaker first as the tech and retail giant opens up its popular voice assistant to greater flexibility to outside companies. Alexa Custom Assistant is different from standard Alexa capabilities in the way automakers can take the technology and build their own platform from it. In FCA's case, Alexa will live alongside its own proprietary in-car voice assistant. If a driver asks a command vehicle related, the FCA assistant will handle the job. If they want to know about the weather, control smart home devices or change media in the car, Alexa will handle the tasks.