@paulsso and everybody who PMed me about it.
In my post, I really just summoned up the requirements a device to enable the driver to watch video (not audio, btw) on any PSA car would need to have.
I personally do not own nor do I intend to purchase such a device. And I really do not fancy zero-thank-posts which easily produce PMs and hundreds of views.
But maybe they can help you:
No audio and really funny english in the product information:
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"By law, watching mobbing pictures while driving is prohibited."