You are implying that any data gathered will be delivered to the government upon request (unsure if you are implying with or without a warrant). If you can show me from this article, or even this case, regarding this privacy case that that happened, then yes I agree with you and the fourth amendment applies.
But this issue is between private entities which generally precludes amendments from being applicable. Specifically, the plaintiffs alleged that the infotainment systems collected and stored personal data without consent and violated Washington’s Privacy Act.