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Audible users who also use Amazon Prime Video will soon start seeing audiobook recommendations based on their Prime Video viewing history, as shared byTechCrunch. Audible’s Chief Product & Analytics Officer, Andy Tsao, gave the publication a statement on the matter:

There is a natural synergy between TV, movies, and books, and we see that clearly in how our customers engage with content on Audible. We are constantly innovating to deliver on what our customers want and we’re excited about the potential of this feature to help our listeners dive deeper into the stories and worlds they love in other mediums, and to discover new ones as well.
A new discovery page on Audible will house the recommendations in a carousel format, displaying audiobooks connected to users' Prime Video viewing habits based on factors like genres, authors, storylines, titles, and more. The feature is a welcome addition, considering that Amazon has found a direct correlation between releases of films or TV adaptations on Prime Video with related audiobook material. For example, the daily listening minutes forLee Child’s workssaw an 80% increase following the release ofReacheron Prime Video.

It’s worth noting that the feature is still under testing, and thus, not available to all. According to Amazon, half of all users with both Amazon Prime Video and Audible will see the carousel. It is currently unclear if and when the feature might widely roll out.
No opt-outs available
Considering that the new feature is just a test, users haven’t been offered an opt-in or opt-out option. I can see this becoming an issue for Audible users who prefer cleaner and a less-cluttered UI and app experience, and for those that want to keep their viewing and spoken word content preferences separate.
There’s also a risk of receiving irrelevant Audible recommendations if multiple people use the same Prime Video account under a shared profile, which makes an option to opt-out of the feature all the more necessary.